CYCLOHEXYLAMINE

Cyclohexylamine is used as a rubber accelerator or inhibitor, as a corrosion inhibitor for water in boilers, as a dyeing aid, in paints and pigments, as a surfactant, as a processing agent in nylon fiber production, as an oxygen absorbing compound, and as an intermediate in organic chemical syntheses for the manufacture of insecticides, herbicides, plasticizers, corrosion inhibitors, rubber chemicals, dyestuffs, emulsifying agents, dry cleaning soaps, and absorbents for acid gases (Clayton & Flayton, 1994; Budavari, 1996) ACGIH, 1986; (ITI, 1995; EPA, 1985).

SOURCES

Cyclohexylamine is made from aniline by catalytic hydrogenation at high temperatures and pressures (Budavari, 1996).
Cyclohexylamine is also a metabolite of the artificial sweetening agent cyclamate in humans, rats, and rabbits (Lee & Dixon, 1972).

-CLINICAL EFFECTS

GENERAL CLINICAL EFFECTS

In cases of reported human vapor exposure, workers developed nausea, lightheadedness, apprehension and anxiety, drowsiness, slurred speech, vomiting, and dilated pupils. Dermal irritation or moderately severe caustic burns may be seen. Skin sensitization may occur. Cyclohexylamine is a severe eye irritant.

Ingestions have not been reported, but potentially serious injury to the esophagus and gastrointestinal tract might be predicted to occur based on the other irritative effects of cyclohexylamine.

Additional effects in exposed EXPERIMENTAL ANIMALS have been methemoglobinemia, seizures with fatal exposure, degenerative changes in the brain, liver, and kidney following fatal doses and premortem shock, hyperactivity, anemia, and elevated metabolic rates and temperature. Teratogenic, mutagenic, and carcinogenic properties have been inconclusively demonstrated.

POTENTIAL HEALTH HAZARDS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)

May cause toxic effects if inhaled or ingested/swallowed.
Contact with substance may cause severe burns to skin and eyes.
Fire will produce irritating, corrosive and/or toxic gases.
Vapors may cause dizziness or suffocation.
Runoff from fire control or dilution water may cause pollution.

-FIRST AID

FIRST AID AND PREHOSPITAL TREATMENT

ORAL EXPOSURE

Induction of emesis should be avoided.
DILUTION

DILUTION: If no respiratory compromise is present, administer milk or water as soon as possible after ingestion. Dilution may only be helpful if performed in the first seconds to minutes after ingestion. The ideal amount is unknown; no more than 8 ounces (240 mL) in adults and 4 ounces (120 mL) in children is recommended to minimize the risk of vomiting (Caravati, 2004).

ACTIVATED CHARCOAL

Activated charcoal may obscure endoscopy results but may be useful in patients with large ingestions.
PREHOSPITAL ACTIVATED CHARCOAL ADMINISTRATION

Consider prehospital administration of activated charcoal as an aqueous slurry in patients with a potentially toxic ingestion who are awake and able to protect their airway. Activated charcoal is most effective when administered within one hour of ingestion. Administration in the prehospital setting has the potential to significantly decrease the time from toxin ingestion to activated charcoal administration, although it has not been shown to affect outcome (Alaspaa et al, 2005; Thakore & Murphy, 2002; Spiller & Rogers, 2002).

In patients who are at risk for the abrupt onset of seizures or mental status depression, activated charcoal should not be administered in the prehospital setting, due to the risk of aspiration in the event of spontaneous emesis.
The addition of flavoring agents (cola drinks, chocolate milk, cherry syrup) to activated charcoal improves the palatability for children and may facilitate successful administration (Guenther Skokan et al, 2001; Dagnone et al, 2002).

CHARCOAL DOSE

Use a minimum of 240 milliliters of water per 30 grams charcoal (FDA, 1985). Optimum dose not established; usual dose is 25 to 100 grams in adults and adolescents; 25 to 50 grams in children aged 1 to 12 years (or 0.5 to 1 gram/kilogram body weight) ; and 0.5 to 1 gram/kilogram in infants up to 1 year old (Chyka et al, 2005).

Routine use of a cathartic with activated charcoal is NOT recommended as there is no evidence that cathartics reduce drug absorption and cathartics are known to cause adverse effects such as nausea, vomiting, abdominal cramps, electrolyte imbalances and occasionally hypotension (None Listed, 2004).

ADVERSE EFFECTS/CONTRAINDICATIONS

Complications: emesis, aspiration (Chyka et al, 2005). Aspiration may be complicated by acute respiratory failure, ARDS, bronchiolitis obliterans or chronic lung disease (Golej et al, 2001; Graff et al, 2002; Pollack et al, 1981; Harris & Filandrinos, 1993; Elliot et al, 1989; Rau et al, 1988; Golej et al, 2001; Graff et al, 2002). Refer to the ACTIVATED CHARCOAL/TREATMENT management for further information.
Contraindications: unprotected airway (increases risk/severity of aspiration) , nonfunctioning gastrointestinal tract, uncontrolled vomiting, and ingestion of most hydrocarbons (Chyka et al, 2005).

-MEDICAL TREATMENT

LIFE SUPPORT

Support respiratory and cardiovascular function.

SUMMARY

FIRST AID - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)

Move victim to fresh air.
Call 911 or emergency medical service.
Give artificial respiration if victim is not breathing.
Do not use mouth-to-mouth method if victim ingested or inhaled the substance; give artificial respiration with the aid of a pocket mask equipped with a one-way valve or other proper respiratory medical device.
Administer oxygen if breathing is difficult.
Remove and isolate contaminated clothing and shoes.
In case of contact with substance, immediately flush skin or eyes with running water for at least 20 minutes.
In case of burns, immediately cool affected skin for as long as possible with cold water. Do not remove clothing if adhering to skin.
Keep victim warm and quiet.
Effects of exposure (inhalation, ingestion or skin contact) to substance may be delayed.
Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.

FIRST AID

INHALATION EXPOSURE

INHALATION: Move patient to fresh air. Monitor for respiratory distress. If cough or difficulty breathing develops, evaluate for respiratory tract irritation, bronchitis, or pneumonitis. Administer oxygen and assist ventilation as required. Treat bronchospasm with an inhaled beta2-adrenergic agonist. Consider systemic corticosteroids in patients with significant bronchospasm.

-RANGE OF TOXICITY

MINIMUM LETHAL EXPOSURE

ROUTE OF EXPOSURE

Cyclohexylamine is classified as very toxic with a probable oral lethal dose of 50 to 500 mg/kg, or between 1 teaspoonful and 1 ounce, for a 70 kg (150 pound) person (EPA, 1985). It is considered a nerve poison (EPA, 1985).

ANIMAL DATA

RATS - Two of three rats exposed by inhalation to 12,000 parts per million for 6 hours died within the first 48 hours (ACGIH, 1986).
ANIMALS - Rats, rabbits, and guinea pigs died following a 7 hour inhalation exposure to 1,200 parts per million (ACGIH, 1986).

MAXIMUM TOLERATED EXPOSURE

ROUTE OF EXPOSURE

INHALATION - Workers acutely exposed to between 4 and 10 parts per million had no symptoms (ACGIH, 1986). Three workers exposed to unspecified higher concentrations developed transient nausea, vomiting, drowsiness, lightheadedness, anxiety, apprehension, slurred speech, and pupillary dilatation (ACGIH, 1986; (Clayton & Flayton, 1994).
DERMAL - In human patch tests, a 25 percent solution produced severe skin irritation and possible skin sensitization (Clayton & Flayton, 1994).

Carcinogenicity Ratings for CAS108-91-8 :

ACGIH (American Conference of Governmental Industrial Hygienists, 2010): A4 ; Listed as: Cyclohexylamine

A4 :Not Classifiable as a Human Carcinogen: Agents which cause concern that they could be carcinogenic for humans but which cannot be assessed conclusively because of a lack of data. In vitro or animal studies do not provide indications of carcinogenicity which are sufficient to classify the agent into one of the other categories.

EPA (U.S. Environmental Protection Agency, 2011): Not Assessed under the IRIS program. ; Listed as: Cyclohexylamine
IARC (International Agency for Research on Cancer (IARC), 2016; International Agency for Research on Cancer, 2015; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2010; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2010a; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2008; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2007; IARC Working Group on the Evaluation of Carcinogenic Risks to Humans, 2006; IARC, 2004): Not Listed
NIOSH (National Institute for Occupational Safety and Health, 2007): Not Listed ; Listed as: Cyclohexylamine
MAK (DFG, 2002): Not Listed
NTP (U.S. Department of Health and Human Services, Public Health Service, National Toxicology Project ): Not Listed

TOXICITY AND RISK ASSESSMENT VALUES

EPA IRIS

EPA Risk Assessment Values for CAS108-91-8 (U.S. Environmental Protection Agency, 2011):

Oral:

Slope Factor:
RfD: 2x10(-1) mg/kg-day

Inhalation:

Unit Risk:
RfC:

Drinking Water:

Unit Risk:

TOXICITY VALUES

References: RTECS, 1999 Lewis, 1997 ITI, 1995
- LC50- (INHALATION)MOUSE:
- LC50- (INHALATION)RAT:
- LD50- (INTRAVENOUS)DOG:
- LD50- (INTRAPERITONEAL)MOUSE:
- LD50- (INTRAVENOUS)MOUSE:
- LD50- (ORAL)MOUSE:
- LD50- (SUBCUTANEOUS)MOUSE:
- LD50- (SKIN)RABBIT:
- LD50- (INHALATION)RAT:
- LD50- (INTRAPERITONEAL)RAT:
- LD50- (ORAL)RAT:
- LDLo- (INTRAVENOUS)RABBIT:
- TDLo- (ORAL)DOG:
- TDLo- (INTRAPERITONEAL)MOUSE:
- TDLo- (ORAL)RAT:

-STANDARDS AND LABELS

WORKPLACE STANDARDS

ACGIH TLV Values for CAS108-91-8 (American Conference of Governmental Industrial Hygienists, 2010):

Editor's Note: The listed values are recommendations or guidelines developed by ACGIH(R) to assist in the control of health hazards. They should only be used, interpreted and applied by individuals trained in industrial hygiene. Before applying these values, it is imperative to read the introduction to each section in the current TLVs(R) and BEI(R) Book and become familiar with the constraints and limitations to their use. Always consult the Documentation of the TLVs(R) and BEIs(R) before applying these recommendations and guidelines.

Adopted Value

Cyclohexylamine

TLV:

TLV-TWA: 10 ppm
TLV-STEL:
TLV-Ceiling:

Notations and Endnotes:

Carcinogenicity Category: A4
Codes: Not Listed
Definitions:

A4: Not Classifiable as a Human Carcinogen: Agents which cause concern that they could be carcinogenic for humans but which cannot be assessed conclusively because of a lack of data. In vitro or animal studies do not provide indications of carcinogenicity which are sufficient to classify the agent into one of the other categories.

TLV Basis - Critical Effect(s): URT and eye irr
Molecular Weight: 99.17

For gases and vapors, to convert the TLV from ppm to mg/m(3):

[(TLV in ppm)(gram molecular weight of substance)]/24.45

For gases and vapors, to convert the TLV from mg/m(3) to ppm:

[(TLV in mg/m(3))(24.45)]/gram molecular weight of substance

AIHA WEEL Values for CAS108-91-8 (AIHA, 2006):

Not Listed

NIOSH REL and IDLH Values for CAS108-91-8 (National Institute for Occupational Safety and Health, 2007):

Listed as: Cyclohexylamine
REL:

TWA: 10 ppm (40 mg/m(3))
STEL:
Ceiling:
Carcinogen Listing: (Not Listed) Not Listed
Skin Designation: Not Listed
Note(s):

IDLH: Not Listed

OSHA PEL Values for CAS108-91-8 (U.S. Occupational Safety, and Health Administration (OSHA), 2010):

Not Listed

OSHA List of Highly Hazardous Chemicals, Toxics, and Reactives for CAS108-91-8 (U.S. Occupational Safety and Health Administration, 2010):

Not Listed

ENVIRONMENTAL STANDARDS

EPA CERCLA, Hazardous Substances and Reportable Quantities for CAS108-91-8 (U.S. Environmental Protection Agency, 2010):

Not Listed

EPA CERCLA, Hazardous Substances and Reportable Quantities, Radionuclides for CAS108-91-8 (U.S. Environmental Protection Agency, 2010):

Not Listed

EPA RCRA Hazardous Waste Number for CAS108-91-8 (U.S. Environmental Protection Agency, 2010b):

Not Listed
Editor's Note: The D, F, and K series waste numbers and Appendix VIII to Part 261 -- Hazardous Constituents were not included. Please refer to 40 CFR Part 261.

EPA SARA Title III, Extremely Hazardous Substance List for CAS108-91-8 (U.S. Environmental Protection Agency, 2010):

Listed as: Cyclohexylamine
Reportable Quantity, in pounds: 10,000

Only the statutory or final RQ is shown. For more information, see 40 CFR table 302.4.

Threshold Planning Quantity, in pounds:

10,000
Amount necessary to be covered by this standard. See 40 CFR 355.30.

Note(s): f

f: Chemicals on the original list that do not meet toxicity criteria but because of their acute lethality, high production volume and known risk are considered chemicals of concern ("Other chemicals"). (November 17, 1986, and February 15, 1990.)

EPA SARA Title III, Community Right-to-Know for CAS108-91-8 (40 CFR 372.65, 2006; 40 CFR 372.28, 2006):

Not Listed

DOT List of Marine Pollutants for CAS108-91-8 (49 CFR 172.101 - App. B, 2005):

Not Listed

EPA TSCA Inventory for CAS108-91-8 (EPA, 2005):

Listed as: Cyclohexanamine

SHIPPING REGULATIONS

SURFACE

DOT -- Table of Hazardous Materials and Special Provisions for UN/NA Number 2357 (49 CFR 172.101, 2005):

Hazardous materials descriptions and proper shipping name: Cyclohexylamine

Symbol(s): Not Listed
Hazard class or Division: 8

8: Corrosive material. See 49 CFR section 173.136 for definitions.

Identification Number: UN2357
Packing Group: II

II: Packing Group II - indicates the degree of danger presented by the material is medium.

Label(s) required (if not excepted): 8, 3

8: Corrosive.
3: Flammable Liquid.

Special Provisions: IB2, T7, TP2

IB2: Authorized IBCs: Metal (31A, 31B and 31N); Rigid plastics (31H1 and 31H2); Composite (31HZ1). Additional Requirement: Only liquids with a vapor pressure less than or equal to 110 kPa at 50 °C (1.1 bar at 122 °F), or 130kPa at 55 °C (1.3 bar at 131 °F) are authorized.
T7: Minimum test pressure (bar): 4; Minimum shell thickness (in mm-reference steel) (See sxn.178.274(d)): sxn.178.274(d)(2); Pressure-relief requirements (See sxn.178.275(g)): Normal; Bottom opening requirements (See sxn.178.275(d)): sxn.178.275(d)(3).
TP2: a. The maximum degree of filling must not exceed the degree of filling determined by the following: [Degree of filling = 95/1+alpha(tr - tf)], where tr is the maximum mean bulk temperature during transport, tf is the temperature in degrees celsius of the liquid during filling, and alpha is the mean coefficient of cubical expansion of the liquid between the mean temperature of the liquid during filling (tf) and the maximum mean bulk temperature during transportation (tr) both in degrees celsius; and b. For liquids transported under ambient conditions a may be calculated using the formula: [alpha = (d15-d50)/(35 x d50)], where d15 and d50 are the densities (in units of mass per unit volume) of the liquid at 15 degrees C (59 degrees F) and 50 degrees C (122 degrees F), respectively.

Packaging Authorizations (refer to 49 CFR 173.***):

Exceptions: None
Non-bulk packaging: 202
Bulk packaging: 243

Quantity Limitations:

Passenger aircraft or railcar: 1 L
Cargo aircraft only: 30 L

Vessel Stowage Requirements:

Vessel stowage location: A

A: The material may be stowed "on deck" or "under deck" on a cargo vessel and on a passenger vessel.

Vessel stowage other: 40

40: Stow "clear of living quarters".

ICAO International Shipping Name for UN2357 (ICAO, 2002):

Proper Shipping Name: Cyclohexylamine
UN Number: 2357

LABELS

NFPA

NFPA Hazard Ratings for CAS108-91-8 (NFPA, 2002):

Listed as: Cyclohexylamine
Hazard Ratings:

Health Rating (Blue): 3

(3) Seriously toxic material. Short term exposure could cause serious temporary or residual injury even though prompt medical treatment is given. Includes known or suspect small animal carcinogens, mutagens, or teratogens.

Flammability Rating (Red): 3

(3) Flammable. Liquids and solids that can be ignited under almost all ambient temperature conditions. Including liquids with a flash point below 73 degrees F and a boiling point above 100 degrees F, solid materials which form coarse dusts that burn rapidly without becoming explosive, materials which burn rapidly by reason of self-contained oxygen (ie, organic peroxides), and materials which ignite spontaneously when exposed to air.

Instability Rating (Yellow): 0

(0) Materials which are normally stable, even under fire conditions, and which are not reactive with water.

Oxidizer/Water-Reactive Designation: Not Listed

-HANDLING AND STORAGE

SUMMARY

INDUSTRIAL CHEMICALS

Do not breath vapors or fumes and keep upwind of spills or leaks (Student, 1981). Broken containers should not be handled without full protective equipment, including boots, protective butyl rubber gloves, and goggles (Student, 1981; ITI, 1988). A self-contained positive pressure breathing apparatus should be worn when fighting fires or in areas with potentially high vapor air concentrations (Student, 1981; Fire Protection Guide, 1978).
Butyl rubber gloves, work clothing, a chemical face shield or chemical goggles, and an all purpose canister respirator (when adequate ventilation cannot be maintained keeping air concentrations below established exposure standards) should be worn during normal handling of this material (ITI, 1988; Plunkett, 1976).
Cyclohexylamine should be stored in outdoor or detached facilities or in a standard flammable liquids storage room if indoors, with containers protected from damage in either case (ITI, 1988).

STORAGE

ROOM/CABINET RECOMMENDATIONS

Outside or detached storage is preferred (NFPA, 1991).
Avoid oxidizing materials, acids, and sources of halogen (NFPA, 1991).
Store in a cool, dry, well-ventilated location (NFPA, 1991).

-PERSONAL PROTECTION

SUMMARY

RECOMMENDED PROTECTIVE CLOTHING - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)

Wear positive pressure self-contained breathing apparatus (SCBA).
Wear chemical protective that is specifically recommended by the manufacturer. It may provide little or no thermal protection.
Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.

RESPIRATORY PROTECTION

Refer to "Recommendations for respirator selection" in the NIOSH Pocket Guide to Chemical Hazards on TOMES Plus(R) for respirator information.

PROTECTIVE CLOTHING

CHEMICAL PROTECTIVE CLOTHING. Search results for CAS 108-91-8.

All data are compiled from published sources and are NOT recommended specifically by Truven Health Analytics. The appearance of specific manufacturers or products in this section does not represent an endorsement by Truven Health Analytics. No attempt has been made to verify the data presented. All product recommendations should be confirmed with the specific manufacturer for verification of product performance.
CLOTHING

Microporous Fabric

Workrite

CSP Garments

Degradation Rating: PASS
Breakthrough Time (minutes): Not Listed
Permeation Rate (mcg/cm2/min): Not Listed
Notes: Not Listed
Citation: (Workrite, 1997)

Neoprene

River City

Neoprene splash suits

Degradation Rating: Not Recommended
Breakthrough Time (minutes): Not Listed
Permeation Rate (mcg/cm2/min): Not Listed
Notes: Not Listed
Citation: (River City, 1995)

Plastic Laminate

DuPont Personal Protection

Responder

Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): >480
Permeation Rate (mcg/cm2/min): None detected
Notes: Not Listed
Citation: (DuPont, 2002)

Responder Plus

Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): >480
Permeation Rate (mcg/cm2/min): None detected
Notes: Not Listed
Citation: (DuPont, 2002)

Polyvinyl Chloride

River City

PVC splash suits

Degradation Rating: Not Recommended
Breakthrough Time (minutes): Not Listed
Permeation Rate (mcg/cm2/min): Not Listed
Notes: Not Listed
Citation: (River City, 1995)

FOOTWEAR

Specific recommendations and test data for this product type were not found in the available manufacturers' product literature.

GLOVES

Butyl

North Safety Products

Butyl Series

Degradation Rating: Fair
Breakthrough Time (minutes): 174
Permeation Rate (mcg/cm2/min): 29000
Notes: Not Listed
Citation: (North, 2002)

Nitrile

Marigold Industrial

315F

Degradation Rating: Poor
Breakthrough Time (minutes): 87
Permeation Rate (mcg/cm2/min): >1,000
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

326Y

Degradation Rating: Poor
Breakthrough Time (minutes): 6
Permeation Rate (mcg/cm2/min): >1,000
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

368R

Degradation Rating: Poor
Breakthrough Time (minutes): 360
Permeation Rate (mcg/cm2/min): >1,000
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

Degradation Rating: Poor
Breakthrough Time (minutes): 21
Permeation Rate (mcg/cm2/min): >1,000
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

CO7B

Degradation Rating: Not Listed
Breakthrough Time (minutes): Not Listed
Permeation Rate (mcg/cm2/min): Not Listed
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

CR30

Degradation Rating: Not Listed
Breakthrough Time (minutes): Not Listed
Permeation Rate (mcg/cm2/min): Not Listed
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

G12T

Degradation Rating: Poor
Breakthrough Time (minutes): 5
Permeation Rate (mcg/cm2/min): >1,000
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

ME104

Degradation Rating: Poor
Breakthrough Time (minutes): 62
Permeation Rate (mcg/cm2/min): >1,000
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

U263B/G

Degradation Rating: Poor
Breakthrough Time (minutes): 145
Permeation Rate (mcg/cm2/min): >1,000
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

US:173 / CAN:459

Degradation Rating: Poor
Breakthrough Time (minutes): 19
Permeation Rate (mcg/cm2/min): >1,000
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

US:414 / CAN:454

Degradation Rating: Poor
Breakthrough Time (minutes): 5
Permeation Rate (mcg/cm2/min): >1,000
Notes: Not Listed
Citation: (Marigold Industrial, 2003)

GENERAL INFORMATION

This section provides a compilation of chemical resistance information and test data for specific protective clothing products. Chemical resistance information includes both degradation resistance ratings and permeation resistance data. This information is designed to assist in the selection of appropriate protective clothing. Only data on specific products and manufacturers are included. Generic information or recommendations are not provided since significant differences can exist in the chemical resistance for apparent similar product types.
Specific product information is organized by general product type (gloves, garments, and footwear), material type, and manufacturer. The category 'garments' may include totally encapsulating suits, splash suits, as well as other items (e.g., coveralls, jackets, and aprons). Specific manufacturers should be contacted to determine the features of available styles/models.
In addition to chemical resistance information, there are many critical variables in the selection of protective clothing which cannot be represented in this summary of the literature. Some factors to be considered in choosing protective clothing include, but are not limited to: overall clothing integrity, physical hazard resistance, durability, human factors, ease of decontamination, and cost. Overall clothing integrity refers to a specific design's ability to offer consistent protection for all clothing-covered areas of the body. Physical hazards include resisting the effects of abrasion, cuts, tears, and punctures. Human factors entail effects on wearer mobility, visibility, and hearing for garments; dexterity, tactility, and grip for gloves; ankle support and weight for footwear; and, any effect of the clothing on the function of the wearer. There are several variations in the design for gloves, garments, and footwear that affect these factors. Protective clothing must properly be sized and correctly fit the wearer to ensure its proper use and function.
As required in the U.S.A., protective clothing should be selected based on a risk assessment of the workplace. This risk assessment must account for the identification of existing as well as potential hazards and involve the recommendation of protective clothing appropriate for the identified hazards. Therefore, the recommendations in this section should not be used as the sole basis for decisions on choice of protective clothing, but rather should be used as a tool by qualified occupational health and safety professionals or other technically qualified persons in conjunction with a review of all mitigating factors. Consult the OSHA PPE Standard (29 CFR 1910.132 - 1910.138) for regulations and additional guidance regarding the selection and use of protective clothing and equipment. For general information on protective clothing selection, refer to the "PERSONAL PROTECTIVE EQUIPMENT - OSHA PUB 3077" document.
PROTECTIVE CLOTHING SELECTION

Determine the type of protective clothing item needed based on a risk assessment (e.g., gloves, garments, footwear).
For high risk situations, choose clothing that covers all parts of the body that may be exposed. In many cases, multiple clothing items will be required. Low risk situations may permit partial body protective clothing. Select protective clothing products that have reported chemical resistance data. High risk situations involving full body clothing or extended chemical contact often require permeation resistance data to determine the barrier effectiveness of materials used in the construction of clothing. Relatively low risk situations, where only splash or incidental exposure occur, may allow use of protective clothing based on degradation or penetration resistance data. Specifics on the interpretation of chemical resistance data are presented below.
Other factors must be considered in addition to chemical resistance. The selected chemical protective clothing item should offer the optimal combination of protection against identified hazards while allowing maximum function and comfort.

INTERPRETATION OF DEGRADATION RATINGS

Degradation refers to physical changes in a material as the result of chemical exposure. Degradation may become evident in visible changes, such as discoloration, swelling, delamination, deterioration, or disintegration. Degradation effects may also be measured by weight change or other changes in a material's physical properties (e.g., strength, elasticity, hardness).
Degradation resistance ratings are provided by manufacturers to rate the amount of degradation that occurs for a particular protective clothing material when contacted by a chemical. All degradation ratings are qualitative and include ratings, such as "EXCELLENT," "GOOD," "FAIR," "POOR," and "NOT RECOMMENDED." There is no standard test method for the measurement of chemical degradation resistance; therefore, manufacturer ratings may be based on different testing approaches. This makes comparison of degradation ratings between manufacturers unreliable.
The use of degradation resistance ratings alone to recommend protective clothing, particularly for high hazard situations, should be avoided. Degradation resistance testing does not directly assess the barrier quality of protective clothing, since materials can show relatively little degradation but still allow either permeation or penetration by a chemical. Degradation resistance ratings can be used to exclude protective clothing materials from consideration. Protective clothing materials with a "NOT RECOMMENDED" degradation resistance rating should never be used.
For some products, the rating "NO PENETRATION" is provided. This refers to penetration resistance test results that are based on a different procedure (American Society for Testing and Materials (ASTM) Standard Test Method F 903). Penetration resistance testing involves placing a material sample in a test cell, exposing the exterior side of the material to a chemical, and then observing the interior side of the material for visible signs of liquid penetration. Part of the test is conducted at an elevated pressure. Test results are reported as pass (no penetration) or fail (penetration detected). Unlike degradation testing, penetration testing provides an assessment of protective clothing material barrier performance. Since penetration resistance testing examines only observable amounts of liquid penetration, permeation may still occur. The use of penetration resistance data must be restricted to liquid chemicals, and should be limited to scenarios where there is no reasonable vapor exposure hazard under the conditions of exposure.

INTERPRETATION OF PERMEATION DATA

Permeation is the process of chemical movement through a material on a molecular level. Permeation resistance refers to the ability of a material to retard or prevent chemical movement through it. Permeation may occur without any visible signs of degradation.
Permeation resistance is measured using a test cell which is divided into two halves by a protective clothing specimen. Chemical is placed on the challenge side, while the collection side is periodically monitored for permeating chemical. Permeation data were obtained in accordance with the American Society for Testing and Materials (ASTM) Standard Test Method F 739 (Resistance of Materials Used in Protective Clothing to Permeation by Liquids and Gases), unless stated otherwise. In the case of chemicals that are classified as warfare agents, the data were obtained in accordance with the Military Standard 282 (MIL-STD-282) (Military Standard, Filter Units, Protective Clothing, Gas-Mask Components, and Related Products: Performance Test Methods).
Permeation rate is the amount of chemical that passes through a material for a measured surface area per unit time. In this section, permeation rate is expressed in micrograms per square centimeter per minute (mcg/cm(2)/min). The reported permeation rate is either the steady-state rate or the maximum rate observed during testing. In some cases, very large permeation rates exceed measurement techniques and are reported as ">" (greater than) or "HIGH."
Breakthrough time is the elapsed time, in minutes, from the time the chemical comes in contact with the material exterior surface, to the time that chemical is detected on the interior surface. When no breakthrough is detected, the breakthrough time is report as ">" the testing period. If permeation breakthrough is rapid, results are reported as "<" (less than) the earlier sampling time or as "IMMEDIATELY" (which usually means breakthrough in less than 4 minutes).
The breakthrough time should exceed the expected use period of the selected protective clothing. Additionally, there are several other factors that must be taken into account to provide appropriate protection.
Permeation testing is usually conducted with full strength, undiluted chemical for the duration of the test period. Actual exposures may involve diluted chemical for short or intermittent exposure periods.
Permeation testing is usually conducted at room temperature. Permeation occurs faster at elevated temperatures (short breakthrough times and higher permeation rates) and slower at reduced temperatures (long breakthrough times and lower permeation rates).
Permeation resistance of mixtures cannot usually be determined on the basis of the individual chemicals making up the mixture. Synergistic effects may occur and result in more rapid permeation than accounted for by the individual mixture chemicals.
Permeation rates may be used to calculate potential wearer exposure; however, several assumptions must be made about the extent of exposure and condition of clothing wear. Furthermore, there are few chemicals with dermal exposure limits, making it difficult to determine an acceptable skin exposure level.

COMPANY INFORMATION

DuPont Personal Protection P. O. Box 80705 Wilmington, DE 19880-0705 USA Phone: (302) 774-1000 Toll-Free: (800) 931-3456 Website: http://personalprotection.dupont.com Email: personalprotection@usa.dupont.com
Marigold Industrial 3585 Engineering Drive Suite 200 Box 926090 Norcross, GA 30092 USA Phone: (800) 733-0987 Fax: (800) 786-4564 Toll-Free: (800) 733-0987 Website: http://www.marigoldindustrial.com
North Safety Products 2000 Plainfield Pike Cranston, RI 02921 USA Phone: (800) 430-4110 Fax: (800) 572-6346 Toll-Free: (800) 430-4110 Website: http://www.northsafety.com Email: marketing@northsafety.com
River City 5321 East Shelby Dr. Memphis, TN 38188 USA Phone: (800) 888-0347 Fax: (901) 795-3815 Toll-Free: (800) 888-0347 Website: http://www.protectivewear.com Email: support@protectivewear.com
Workrite 500 East Third Street Box 1192 Oxnard, CA 93032 USA Phone: (805) 483-0715 Fax: (805) 483-0678 Toll-Free: (800) 521-1888 Website: http://www.workrite.com Email: info@workrite.com

REFERENCES

CHEMICAL PROTECTIVE CLOTHING CITATIONS

The following sources were consulted for chemical protective clothing data:

(Ansell-Edmont, 2001)
(Bata Shoe Company, 1995)
(Best Manufacturing, 2002)
(Best Manufacturing, 2004)
(Boss Manufacturing Company, 1998)
(ChemFab Corporation, 1993)
(Comasec Safety, Inc., 2003)
(Comasec Safety, Inc., 2003a)
(DuPont, 2002)
(DuPont, 2002)
(DuPont, 2003)
(Guardian Manufacturing Group, 2001)
(ILC Dover, Inc., 1998)
(Kappler Inc., 2001)
(Kimberly-Clark, 2002)
(LaCrosse-Rainfair, 1997)
(MAPA Professional, 2003)
(MAPA Professional, 2004)
(Mar-Mac Manufacturing, Inc, 1995)
(Marigold Industrial, 2003)
(Memphis Glove Company, 2001)
(Montgomery Safety Products, 1995)
(Nat-Wear, 2001)
(Neese Industries, Inc., 2003)
(North, 2002)
(North, 2002)
(Playtex, 1995)
(River City, 1995)
(Safety 4, 2002)
(Servus, 1995)
(Standard Safety Equipment, 1995)
(Tingley, 2002)
(Trelleborg-Viking, Inc., 2001)
(Trelleborg-Viking, Inc., 2002)
(Wells Lamont Industrial, 2002)
(Workrite, 1997)

-PHYSICAL HAZARDS

FIRE HAZARD

SUMMARY

POTENTIAL FIRE OR EXPLOSION HAZARDS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)
- Flammable/combustible materials.
- May be ignited by heat, sparks or flames.
- Vapors may form explosive mixtures with air.
- Vapors may travel to source of ignition and flash back.
- Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks).
- Vapor explosion hazard indoors, outdoors or in sewers.
- Those substances designated with a "P" may polymerize explosively when heated or involved in a fire.
- Runoff to sewer may create fire or explosion hazard.
- Containers may explode when heated.
- Many liquids are lighter than water.
Cyclohexylamine is a dangerous fire hazard when exposed to heat, flame or oxidizers (Sax & Lewis, 1989).

FLAMMABILITY CLASSIFICATION

NFPA Flammability Rating for CAS108-91-8 (NFPA, 2002):

Listed as: Cyclohexylamine
Flammability Rating: 3

(3) Flammable. Liquids and solids that can be ignited under almost all ambient temperature conditions. Including liquids with a flash point below 73 degrees F and a boiling point above 100 degrees F, solid materials which form coarse dusts that burn rapidly without becoming explosive, materials which burn rapidly by reason of self-contained oxygen (ie, organic peroxides), and materials which ignite spontaneously when exposed to air.

FIRE CONTROL/EXTINGUISHING AGENTS

FIRE PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)

Some of these materials may react violently with water.

SMALL FIRE PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)

Dry chemical, CO2, water spray or alcohol-resistant foam.

LARGE FIRE PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)

Water spray, fog or alcohol-resistant foam.
Move containers from fire area if you can do it without risk.
Dike fire control water for later disposal; do not scatter the material.
Do not get water inside containers.

TANK OR CAR/TRAILER LOAD FIRE PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)

Fight fire from maximum distance or use unmanned hose holders or monitor nozzles.
Cool containers with flooding quantities of water until well after fire is out.
Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
ALWAYS stay away from tanks engulfed in fire.
For massive fire, use unmanned hose holders or monitor nozzles; if this is impossible, withdraw from area and let fire burn.

NFPA Extinguishing Methods for CAS108-91-8 (NFPA, 2002):

Listed as: Cyclohexylamine
Extinguishing Method(s): 1, 5

1: "Water may be ineffective" applies to a situation where materials with a flash point below 100 degrees F (37.8 degrees C) are burning. Water will only be effective if used by experienced fire fighters under favorable conditions. Even though water may not put the fire out, it can be used to protect equipment and structures.
5: Flammable liquid fires can be extinguished using carbon dioxide, dry chemical, foam, and vaporizing liquid extinguishers, as long as the fires are small to moderate in size and the flammable liquid reservoir is shallow. Use of foam to form a blanket over a flammable liquid is not effective when the liquid is water-soluble. Certain alcohol resistant foams are effective extinguishing agents for polar, non-polar, and water-soluble liquid fires. These foams are preferred for fighting flammable liquid fires except those that involve water reactive flammable liquids.

To fight fire, use alcohol foam, carbon dioxide, or dry chemical (Sax & Lewis, 1989).

Use water spray, dry chemical, "alcohol resistant" foam, or carbon dioxide. Use water spray to keep fire-exposed containers cool. Solid streams of water may be ineffective and spread material (NFPA, 1991).

Use water in flooding quantities as fog. Solid streams of water may be ineffective. Apply water from as far a distance as possible (AAR, 1987).

COMBUSTION TOXICITY

When heated to decomposition, cyclohexylamine emits toxic fumes of oxides of nitrogen (Sax & Lewis, 1989).
Products of decomposition include carbon monoxide, carbon dioxide, hydrocarbons, and oxides of nitrogen, as well as amine vapors and ammonia (NFPA, 1991).

EXPLOSION HAZARD

Cyclohexylamine forms an explosive solution with nitric acid (ITI, 1988).

DUST/VAPOR HAZARD

Vapor is moderately irritating such that personnel will not usually tolerate moderate or high vapor concentrations (CHRIS , 1991).

Products of decomposition include carbon monoxide, carbon dioxide, hydrocarbons, and oxides of nitrogen, as well as amine vapors and ammonia (NFPA, 1991).

REACTIVITY HAZARD

Products of decomposition include carbon monoxide, carbon dioxide, hydrocarbons, and oxides of nitrogen, as well as amine vapors and ammonia (NFPA, 1991).

Avoid contact with acids, oxidizing materials, chlorine, hypochlorite, halogenated compounds, and reactive organic compounds (NFPA, 1991).

EVACUATION PROCEDURES

SUMMARY

Editor's Note: This material is not listed in the Table of Initial Isolation and Protective Action Distances.

LARGE SPILL - PUBLIC SAFETY EVACUATION DISTANCES - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)

Increase, in the downwind direction, as necessary, the isolation distance of at least at least 50 meters (150 feet) in all directions.

FIRE - PUBLIC SAFETY EVACUATION DISTANCES - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)

If tank, rail car or tank truck is involved in a fire, ISOLATE for 800 meters (1/2 mile) in all directions; also, consider initial evacuation for 800 meters (1/2 mile) in all directions.

PUBLIC SAFETY MEASURES - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132(ERG, 2004)

CALL Emergency Response Telephone Number on Shipping Paper first. If Shipping Paper not available or no answer, refer to appropriate telephone number:

MEXICO:

SETIQ:

01-800-00-214-00 in the Mexican Republic;
For calls originating in Mexico City and the Metropolitan Area: 5559-1588;
For calls originating elsewhere, call: 011-52-555-559-1588.

CENACOM:

01-800-00-413-00 in the Mexican Republic;
For calls originating in Mexico City and the Metropolitan Area: 5550-1496, 5550-1552, 5550-1485, or 5550-4885;
For calls originating elsewhere, call: 011-52-555-550-1496, or 011-52-555-550-1552; 011-52-555-550-1485, or 011-52-555-550-4885.

ARGENTINA:

CIQUIME:

0-800-222-2933 in the Republic of Argentina;
For calls originating elsewhere, call: +54-11-4613-1100.

BRAZIL:

PRÓ-QUÍMICA:

0-800-118270 (Toll-free in Brazil);
For calls originating elsewhere, call: +55-11-232-1144 (Collect calls are accepted).

COLUMBIA:

CISPROQUIM:

01-800-091-6012 in Colombia;
For calls originating in Bogotá, Colombia, call: 288-6012;
For calls originating elsewhere, call: 011-57-1-288-6012.

CANADA:

CANUTEC:

613-996-6666 (Collect calls are accepted);
*666 cellular (in Canada only).

UNITED STATES:

CHEMTREC®:

1-800-424-9300 (Toll-free in the U.S., Canada, and the U.S. Virgin Islands);
703-527-3887 for calls originating elsewhere (Collect calls are accepted).

CHEM-TEL, INC.:

1-800-255-3924 (Toll-free in the U.S., Canada, and the U.S. Virgin Islands);
813-248-0585 for calls originating elsewhere (Collect calls are accepted).

INFOTRAC:

1-800-535-5053 (Toll-free in the U.S., Canada, and the U.S. Virgin Islands);
352-323-3500 for calls originating elsewhere (Collect calls are accepted).

3E COMPANY:

1-800-451-8346 (Toll-free in the U.S., Canada, and the U.S. Virgin Islands);
760-602-8703 for calls originating elsewhere (Collect calls are accepted).

NATIONAL RESPONSE CENTER (NRC):

1-800-424-8802 - (24 hours) (Toll-free in the U.S., Canada, and the U.S. Virgin Islands);
202-267-2675 for calls in the District of Columbia.

MILITARY SHIPMENTS:

703-697-0218 - Explosives/ammunition incidents (Collect calls are accepted);
1-800-851-8061 - All other dangerous goods incidents.

NATIONWIDE POISON CONTROL CENTER (United States only):

1-800-222-1222 (Toll-free in the U.S.).

For additional details see the section entitled "WHO TO CALL FOR ASSISTANCE" under the ERG Instructions.
As an immediate precautionary measure, isolate spill or leak area for at least 50 meters (150 feet) in all directions.
Keep unauthorized personnel away.
Stay upwind.
Keep out of low areas.
Ventilate closed spaces before entering.

AIHA ERPG Values for CAS108-91-8 (AIHA, 2006):

Not Listed

DOE TEEL Values for CAS108-91-8 (U.S. Department of Energy, Office of Emergency Management, 2010):

Listed as Cyclohexylamine
TEEL-0 (units = ppm): 1.8
TEEL-1 (units = ppm): 1.8
TEEL-2 (units = ppm): 8.6
TEEL-3 (units = ppm): 30
Definitions:

TEEL-0: The threshold concentration below which most people will experience no adverse health effects.
TEEL-1: The airborne concentration (expressed as ppm [parts per million] or mg/m(3) [milligrams per cubic meter]) of a substance above which it is predicted that the general population, including susceptible individuals, could experience notable discomfort, irritation, or certain asymptomatic, nonsensory effects. However, these effects are not disabling and are transient and reversible upon cessation of exposure.
TEEL-2: The airborne concentration (expressed as ppm or mg/m(3)) of a substance above which it is predicted that the general population, including susceptible individuals, could experience irreversible or other serious, long-lasting, adverse health effects or an impaired ability to escape.
TEEL-3: The airborne concentration (expressed as ppm or mg/m(3)) of a substance above which it is predicted that the general population, including susceptible individuals, could experience life-threatening adverse health effects or death.

AEGL Values for CAS108-91-8 (National Research Council, 2010; National Research Council, 2009; National Research Council, 2008; National Research Council, 2007; NRC, 2001; NRC, 2002; NRC, 2003; NRC, 2004; NRC, 2004; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; United States Environmental Protection Agency Office of Pollution Prevention and Toxics, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2009; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2008; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2007; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2005; National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances, 2006; 62 FR 58840, 1997; 65 FR 14186, 2000; 65 FR 39264, 2000; 65 FR 77866, 2000; 66 FR 21940, 2001; 67 FR 7164, 2002; 68 FR 42710, 2003; 69 FR 54144, 2004):

Listed as: Cyclohexylamine
Final Value:

AEGL-1

10 min exposure:

ppm: 1.8 ppm
mg/m3: 7.3 mg/m(3)

30 min exposure:

ppm: 1.8 ppm
mg/m3: 7.3 mg/m(3)

1 hr exposure:

ppm: 1.8 ppm
mg/m3: 7.3 mg/m(3)

4 hr exposure:

ppm: 1.8 ppm
mg/m3: 7.3 mg/m(3)

8 hr exposure:

ppm: 1.8 ppm
mg/m3: 7.3 mg/m(3)

Definitions:

AEGL-1 is the airborne concentration of a substance above which it is predicted that the general population, including susceptible individuals, could experience notable discomfort, irritation, or certain asymptomatic non-sensory effects. However, the effects are not disabling, are transient, and are reversible upon cessation of exposure.

Listed as: Cyclohexylamine
Final Value:

AEGL-2

10 min exposure:

ppm: 11 ppm
mg/m3: 45 mg/m(3)

30 min exposure:

ppm: 11 ppm
mg/m3: 45 mg/m(3)

1 hr exposure:

ppm: 8.6 ppm
mg/m3: 35 mg/m(3)

4 hr exposure:

ppm: 5.4 ppm
mg/m3: 22 mg/m(3)

8 hr exposure:

ppm: 2.7 ppm
mg/m3: 11 mg/m(3)

Definitions:

AEGL-2 is the airborne concentration of a substance above which it is predicted that the general population, including susceptible individuals, could experience irreversible or other serious, long-lasting adverse health effects or an impaired ability to escape.

Listed as: Cyclohexylamine
Final Value:

AEGL-3

10 min exposure:

ppm: 38 ppm
mg/m3: 150 mg/m(3)

30 min exposure:

ppm: 38 ppm
mg/m3: 150 mg/m(3)

1 hr exposure:

ppm: 30 ppm
mg/m3: 120 mg/m(3)

4 hr exposure:

ppm: 19 ppm
mg/m3: 77 mg/m(3)

8 hr exposure:

ppm: 9.5 ppm
mg/m3: 39 mg/m(3)

Definitions:

AEGL-3 is the airborne concentration of a substance above which it is predicted that the general population, including susceptible individuals, could experience life-threatening health effects or death.

NIOSH IDLH Values for CAS108-91-8 (National Institute for Occupational Safety and Health, 2007):

Not Listed

CONTAINMENT/WASTE TREATMENT OPTIONS

SUMMARY

SPILL OR LEAK PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)
- Fully encapsulating, vapor protective clothing should be worn for spills and leaks with no fire.
- ELIMINATE all ignition sources (no smoking, flares, sparks or flames in immediate area).
- All equipment used when handling the product must be grounded.
- Do not touch or walk through spilled material.
- Stop leak if you can do it without risk.
- Prevent entry into waterways, sewers, basements or confined areas.
- A vapor suppressing foam may be used to reduce vapors.
- Absorb with earth, sand or other non-combustible material and transfer to containers (except for Hydrazine).
- Use clean non-sparking tools to collect absorbed material.
RECOMMENDED PROTECTIVE CLOTHING - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)
- Wear positive pressure self-contained breathing apparatus (SCBA).
- Wear chemical protective that is specifically recommended by the manufacturer. It may provide little or no thermal protection.
- Structural firefighters' protective clothing provides limited protection in fire situations ONLY; it is not effective in spill situations where direct contact with the substance is possible.
If material is not on fire and not involved in fire: Keep sparks, flames, and other sources of ignition away. Keep material out of water sources and sewers. Build dikes to contain flow as necessary. Attempt to stop leak if it can be done without risk to personnel. Use water spray to disperse vapors and dilute standing pools of liquid (AAR, 1987).

LARGE LEAK/SPILL

LARGE SPILL PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 132 (ERG, 2004)
- Dike far ahead of liquid spill for later disposal.
- Water spray may reduce vapor; but may not prevent ignition in closed spaces.

-ENVIRONMENTAL HAZARD MANAGEMENT

POLLUTION HAZARD

No information on the pollution hazard of cyclohexylamine was found in available references at the time of this review.

ENVIRONMENTAL FATE AND KINETICS

OTHER

OTHER
- Based on the Fugacity Model the environmental transport of cyclohexylamine is predicted to be 79% to water, 21% to air, 0.1% to soil and 0.02% to sediment (CESARS , 1990).

ENVIRONMENTAL TOXICITY

Ecotoxicity Values (CESARS , 1990):

LC50, Rainbow trout, 96h: 44 mg/L (hardness = 20 mg/L)
LC50, Rainbow trout, 96h: 90 mg/L (hardness = 320 mg/L)
EC50, Daphnia, 24h: 80 mg/L (hardness = 70 mg/L)
EC50 (immobilization), Daphnia, 24h: 58 mg/L

-PHYSICAL/CHEMICAL PROPERTIES

MOLECULAR WEIGHT

99.17

99.20

DESCRIPTION/PHYSICAL STATE

Cyclohexylamine is a colorless to yellow liquid with a strong fishy, ammonia, or amine odor (ACGIH, 1986; (Lewis, 1997; Student, 1981).

10.5 (0.01% aqueous solution) (Lewis, 1997)

VAPOR PRESSURE

10 mmHg (at 24 degrees C) (NFPA, 1997)

SPECIFIC GRAVITY

NORMAL TEMPERATURE AND PRESSURE

(25 degrees C; 77 degrees F and 760 mmHg)
LIQUID: 0.8647 (at 25/25 degrees C) (Budavari, 1996)

OTHER TEMPERATURE AND/OR PRESSURE

LIQUID: 0.8191 (at 4/20 degrees C) (Clayton & Flayton, 1994)

FREEZING/MELTING POINT

MELTING POINT

-17.7 degrees C (Budavari, 1996)

BOILING POINT

134.5 degrees C (at 760 mmHg) (Budavari, 1996)

118.9 degrees C (at 500 mmHg) (Budavari, 1996)

102.5 degrees C (at 300 mmHg) (Budavari, 1996)

72.0 degrees C (at 100 mmHg) (Budavari, 1996)

56.0 degrees C (at 50 mmHg) (Budavari, 1996)

45.1 degrees C (at 30 mmHg) (Budavari, 1996)

41.3 degrees C (at 25 mmHg) (Budavari, 1996)

36.4 degrees C (at 20 mmHg) (Budavari, 1996)

30.5 degrees C (at 15 mmHg) (Budavari, 1996)

FLASH POINT

28 degrees C; 83 degrees F (NFPA, 1997)

69.8 degrees F (Lewis, 1997)

32.2 degrees C; 90 degrees F (open cup) (Lewis, 1997)

88 degrees F (Clayton & Flayton, 1994)

AUTOIGNITION TEMPERATURE

293 degrees C; 560 degrees F (NFPA, 1997; Lewis, 1996)

EXPLOSIVE LIMITS

LOWER

1.5%

UPPER

9.4%

SOLUBILITY

IN WATER

Cyclohexylamine is completely miscible with water (Budavari, 1996)

IN ORGANIC SOLVENTS

Cyclohexylamine is miscible with common organic solvents, including alcohols, ethers, ketones, esters, aliphatic hydrocarbons, aromatic hydrocarbons and their chlorinated derivatives (Budavari, 1996).
Cyclohexylamine is soluble in all proportions in acetone and benzene.
It is soluble in mineral oil and peanut oil (HSDB , 1999).

OTHER/PHYSICAL

ODOR THRESHOLD

Currently not available (CHRIS , 2002).

-REFERENCES

GENERAL BIBLIOGRAPHY

40 CFR 372.28: Environmental Protection Agency - Toxic Chemical Release Reporting, Community Right-To-Know, Lower thresholds for chemicals of special concern. National Archives and Records Administration (NARA) and the Government Printing Office (GPO). Washington, DC. Final rules current as of Apr 3, 2006.

40 CFR 372.65: Environmental Protection Agency - Toxic Chemical Release Reporting, Community Right-To-Know, Chemicals and Chemical Categories to which this part applies. National Archives and Records Association (NARA) and the Government Printing Office (GPO), Washington, DC. Final rules current as of Apr 3, 2006.

49 CFR 172.101 - App. B: Department of Transportation - Table of Hazardous Materials, Appendix B: List of Marine Pollutants. National Archives and Records Administration (NARA) and the Government Printing Office (GPO), Washington, DC. Final rules current as of Aug 29, 2005.

49 CFR 172.101: Department of Transportation - Table of Hazardous Materials. National Archives and Records Administration (NARA) and the Government Printing Office (GPO), Washington, DC. Final rules current as of Aug 11, 2005.

62 FR 58840: Notice of the National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances - Proposed AEGL Values, Environmental Protection Agency, NAC/AEGL Committee. National Archives and Records Administration (NARA) and the Government Publishing Office (GPO), Washington, DC, 1997.

65 FR 14186: Notice of the National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances - Proposed AEGL Values, Environmental Protection Agency, NAC/AEGL Committee. National Archives and Records Administration (NARA) and the Government Publishing Office (GPO), Washington, DC, 2000.

65 FR 39264: Notice of the National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances - Proposed AEGL Values, Environmental Protection Agency, NAC/AEGL Committee. National Archives and Records Administration (NARA) and the Government Publishing Office (GPO), Washington, DC, 2000.

65 FR 77866: Notice of the National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances - Proposed AEGL Values, Environmental Protection Agency, NAC/AEGL Committee. National Archives and Records Administration (NARA) and the Government Publishing Office (GPO), Washington, DC, 2000.

66 FR 21940: Notice of the National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances - Proposed AEGL Values, Environmental Protection Agency, NAC/AEGL Committee. National Archives and Records Administration (NARA) and the Government Publishing Office (GPO), Washington, DC, 2001.

67 FR 7164: Notice of the National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances - Proposed AEGL Values, Environmental Protection Agency, NAC/AEGL Committee. National Archives and Records Administration (NARA) and the Government Publishing Office (GPO), Washington, DC, 2002.

68 FR 42710: Notice of the National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances - Proposed AEGL Values, Environmental Protection Agency, NAC/AEGL Committee. National Archives and Records Administration (NARA) and the Government Publishing Office (GPO), Washington, DC, 2003.

69 FR 54144: Notice of the National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances - Proposed AEGL Values, Environmental Protection Agency, NAC/AEGL Committee. National Archives and Records Administration (NARA) and the Government Publishing Office (GPO), Washington, DC, 2004.

AAR: Emergency Handling of Hazardous Materials in Surface Transportation, Bureau of Explosives, Association of American Railroads, Washington, DC, 1987.

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CYCLOHEXYLAMINE

Classification | Information to evaluate chemical incidents

Information to evaluate chemical incidents

Information to evaluate chemical incidents

Information to evaluate chemical incidents