CARBON TETRAFLUORIDE

It is used as a low temperature refrigerant gas (CGA, 1999).
It is used by electronics industry to etch microchips as a dry etchant and to desmear and etch-back "through holes" on printed circuit boards when blended with oxygen (CGA, 1999).
It is used as an inert filler gas for electrical switchgears (Ashford, 1994).
It is used as a gaseous insulator (HSDB, 2002).

FORMS

It is available in a grade of 95% (minimum) purity (Lewis, 1997a).

SOURCES

It is produced by fluorination of carbon:

It can be produced by reaction of fluorine with carbon monoxide, with amorphous forms of carbon (such as wood charcoal), or with silicon carbide (Ashford, 1994; HSDB, 2002).
It can be produced by reaction of hydrogen fluoride, in the gas phase, with dichlorodifluoromethane or trichlorofluoromethane (HSDB, 2002).

-CLINICAL EFFECTS

GENERAL CLINICAL EFFECTS

Carbon tetrafluoride is considered moderately toxic by inhalation. Exposure to the vapors may cause dizziness, confusion, headache, CNS depression, tremors, coma (rarely), pulmonary irritation, laryngeal spasm or edema, suffocation and ventricular fibrillation. High concentrations can result in narcosis and partial paralysis. Carbon tetrafluoride is a simple asphyxiant; anoxia may result from its displacement of oxygen.

Frostbite and defatting dermatitis may occur after direct skin contact with the liquid or escaped compressed gas. Freezing of airway soft tissue is less likely, but could occur as a result of such contact.

POTENTIAL HEALTH HAZARDS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (ERG, 2004)

Vapors may cause dizziness or asphyxiation without warning.
Vapors from liquefied gas are initially heavier than air and spread along ground.
Contact with gas or liquefied gas may cause burns, severe injury and/or frostbite.
Fire may produce irritating, corrosive and/or toxic gases.

ACUTE CLINICAL EFFECTS

Exposure to the vapors may cause dizziness, CNS depression, tremors, coma (rarely), laryngeal spasm or edema, suffocation, and ventricular fibrillation. Frostbite and defatting dermatitis may occur following direct skin contact with the liquid (HSDB , 1996).

CHRONIC CLINICAL EFFECTS

At the time of this review, no studies were found on the possible effects of chronic exposure to carbon tetrafluoride in humans or experimental animals.

-MEDICAL TREATMENT

LIFE SUPPORT

Support respiratory and cardiovascular function.

SUMMARY

FIRST AID - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (ERG, 2004)

Move victim to fresh air.
Call 911 or emergency medical service.
Give artificial respiration if victim is not breathing.
Administer oxygen if breathing is difficult.
Remove and isolate contaminated clothing and shoes.
In case of contact with liquefied gas, thaw frosted parts with lukewarm water.
Keep victim warm and quiet.
Ensure that medical personnel are aware of the material(s) involved and take precautions to protect themselves.

FIRST AID

GENERAL -

Move victims of inhalation exposure from the toxic environment and administer 100% humidified supplemental oxygen with assisted ventilation as required. Exposed skin and eyes should be copiously flushed with water. Ingestion may result in significant esophageal or gastrointestinal tract irritation or burns, and EMESIS SHOULD NOT BE INDUCED. Cautious gastric lavage followed by administration of activated charcoal may be of benefit if the patient is seen soon after the exposure.

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.
Carefully observe patients with inhalation exposure for the development of any systemic signs or symptoms and administer symptomatic treatment as necessary.
If respiratory tract irritation or respiratory depression is evident, monitor arterial blood gases, chest x-ray, and pulmonary function tests.
Cardiac monitoring may be advisable in cases of substantial exposure. Airway protection and maintenance may also be required.
Whenever possible, the administration of epinephrine should be avoided in patients with fluorocarbon inhalation exposure. If epinephrine is required for the treatment of life-threatening conditions, it should be administered in the lowest possible dose, careful and continuous cardiac monitoring should be done, and resuscitation equipment and supplies should be readily available.
The chloride analog, carbon tetrachloride, has well-known and significant hepatotoxicity and nephrotoxicity. Although carbon tetrafluoride has been reported to have less chronic toxicity, in cases of substantial exposure, it would be advisable to monitor liver and renal function tests and initiate therapy as indicated.

DERMAL EXPOSURE -

DECONTAMINATION: Remove contaminated clothing and jewelry and place them in plastic bags. Wash exposed areas with soap and water for 10 to 15 minutes with gentle sponging to avoid skin breakdown. A physician may need to examine the area if irritation or pain persists (Burgess et al, 1999).
If frostbite has occurred, DO NOT rub the affected areas. DO NOT flush the affected areas with water and DO NOT attempt to remove clothing.
PREHOSPITAL

Rewarming of a localized area should only be considered if the risk of refreezing is unlikely. Avoid rubbing the frozen area which may cause further damage to the area (Grieve et al, 2011; Hallam et al, 2010).

REWARMING

Do not institute rewarming unless complete rewarming can be assured; refreezing thawed tissue increases tissue damage. Place affected area in a water bath with a temperature of 40 to 42 degrees Celsius for 15 to 30 minutes until thawing is complete. The bath should be large enough to permit complete immersion of the injured part, avoiding contact with the sides of the bath. A whirlpool bath would be ideal. Some authors suggest a mild antibacterial (ie, chlorhexidine, hexachlorophene or povidone-iodine) be added to the bath water. Tissues should be thoroughly rewarmed and pliable; the skin will appear a red-purple color (Grieve et al, 2011; Hallam et al, 2010; Murphy et al, 2000).
Correct systemic hypothermia which can cause cold diuresis due to suppression of antidiuretic hormone; consider IV fluids (Grieve et al, 2011).
Rewarming may be associated with increasing acute pain, requiring narcotic analgesics.
For severe frostbite, clinical trials have shown that pentoxifylline, a phosphodiesterase inhibitor, can enhance tissue viability by increasing blood flow and reducing platelet activity (Hallam et al, 2010).

WOUND CARE

Digits should be separated by sterile absorbent cotton; no constrictive dressings should be used. Protective dressings should be changed twice per day.
Perform twice daily hydrotherapy for 30 to 45 minutes in warm water at 40 degrees Celsius. This helps debride devitalized tissue and maintain range of motion. Keep the area warm and dry between treatments (Hallam et al, 2010; Murphy et al, 2000).
The injured extremities should be elevated and should not be allowed to bear weight.
In patients at risk for infection of necrotic tissue, prophylactic antibiotics and tetanus toxoid have been recommended by some authors (Hallam et al, 2010; Murphy et al, 2000).
Non-tense clear blisters should be left intact due to the risk of infection; tense or hemorrhagic blisters may be carefully aspirated in a setting where aseptic technique is provided (Hallam et al, 2010).
Further surgical debridement should be delayed until mummification demarcation has occurred (60 to 90 days). Spontaneous amputation may occur.
Analgesics may be required during the rewarming phase; however, patients with severe pain should be evaluated for vasospasm.
IMAGING: Arteriography and noninvasive vascular techniques (e.g., plain radiography, laser Doppler studies, digital plethysmography, infrared thermography, isotope scanning), have been useful in evaluating the extent of vasospasm after thawing and assessing whether debridement is needed (Hallam et al, 2010). In cases of severe frostbite, Technetium 99 (triple phase scanning) and MRI angiography have been shown to be the most useful to assess injury and determine the extent or need for surgical debridement (Hallam et al, 2010).
TOPICAL THERAPY: Topical aloe vera may decrease tissue destruction and should be applied every 6 hours (Murphy et al, 2000).
IBUPROFEN THERAPY: Ibuprofen, a thromboxane inhibitor, may help limit inflammatory damage and reduce tissue loss (Grieve et al, 2011; Murphy et al, 2000). DOSE: 400 mg orally every 12 hours is recommended (Hallam et al, 2010).
THROMBOLYTIC THERAPY: Thrombolysis (intra-arterial or intravenous thrombolytic agents) may be beneficial in those patients at risk to lose a digit or a limb, if done within the first 24 hours of exposure. The use of tissue plasminogen activator (t-PA) to clear microvascular thromboses can restore arterial blood flow, but should be accompanied by close monitoring including angiography or technetium scanning to evaluate the injury and to evaluate the effects of t-PA administration. Potential risk of the procedure includes significant tissue edema that can lead to a rise in interstitial pressures resulting in compartment syndrome (Grieve et al, 2011).
CONTROVERSIAL: Adjunct pharmacological agents (ie, heparin, vasodilators, prostacyclins, prostaglandin synthetase inhibitors, dextran) are controversial and not routinely recommended. The role of hyperbaric oxygen therapy, sympathectomy remains unclear (Grieve et al, 2011).
CHRONIC PAIN: Vasomotor dysfunction can produce chronic pain. Amitriptyline has been used in some patients; some patients may need a referral for pain management. Inability to tolerate the cold (in the affected area) has been observed following a single episode of frostbite (Hallam et al, 2010).
MORBIDITIES: Frostbite can produce localized osteoporosis and possible bone loss following a severe case. These events may take a year or more to develop. Children may be at greater risk to develop more severe events (ie, early arthritis) (Hallam et al, 2010).

EYE EXPOSURE -

DECONTAMINATION: Remove contact lenses and irrigate exposed eyes with copious amounts of room temperature 0.9% saline or water for at least 15 minutes. If irritation, pain, swelling, lacrimation, or photophobia persist after 15 minutes of irrigation, the patient should be seen in a healthcare facility.
If contact with escaping gas may have caused frostbite of the eyes, DO NOT flush with water; early ophthalmologic consultation should be obtained.

ORAL EXPOSURE

Ingestion is unlikely; however, oral exposure might cause frostbite injury to the upper gastrointestinal and respiratory tracts. Administer oxygen and maintain airway as clinically indicated.
Observe patients with ingestion carefully for the possible development of esophageal or gastrointestinal tract irritation or burns. If signs or symptoms of esophageal irritation or burns are present, consider endoscopy to determine the extent of injury.

-RANGE OF TOXICITY

MINIMUM LETHAL EXPOSURE

ADULT

Inhalation of chlorofluorohydrocarbons in concentrations of approximately 15 percent has caused death (ILO, 1983).
Unconsciousness leading to death will occur when the atmospheric oxygen concentration is reduced to 6% to 8% or less (Kizer, 1984). Signs of asphyxia will be noted when atmospheric oxygen is displaced such that the oxygen concentration is 15% to 16% or less (Kizer, 1984).

MAXIMUM TOLERATED EXPOSURE

ADULT

A feeling of lightheadedness may occur with exposure to airborne chlorofluorohydrocarbon concentrations of 5 to 15 percent (50,000 to 150,000 ppm) (Ellenhorn & Barceloux, 1988).
Unconsciousness leading to death will occur when the atmospheric oxygen concentration is reduced to 6% to 8% or less (Kizer, 1984). Signs of asphyxia will be noted when atmospheric oxygen is displaced such that the oxygen concentration is 15% to 16% or less (Kizer, 1984).

Carcinogenicity Ratings for CAS75-73-0 :

ACGIH (American Conference of Governmental Industrial Hygienists, 2010): Not Listed
EPA (U.S. Environmental Protection Agency, 2011): Not Listed
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
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 CAS75-73-0 (U.S. Environmental Protection Agency, 2011):

Not Listed

TOXICITY VALUES

References: ITI, 1995 RTECS, 2002
- LCLo- (INHALATION)MOUSE:
- LCLo- (INHALATION)RAT:

-STANDARDS AND LABELS

WORKPLACE STANDARDS

ACGIH TLV Values for CAS75-73-0 (American Conference of Governmental Industrial Hygienists, 2010):

Not Listed

AIHA WEEL Values for CAS75-73-0 (AIHA, 2006):

Not Listed

NIOSH REL and IDLH Values for CAS75-73-0 (National Institute for Occupational Safety and Health, 2007):

Not Listed

OSHA PEL Values for CAS75-73-0 (U.S. Occupational Safety, and Health Administration (OSHA), 2010):

Not Listed

OSHA List of Highly Hazardous Chemicals, Toxics, and Reactives for CAS75-73-0 (U.S. Occupational Safety and Health Administration, 2010):

Not Listed

ENVIRONMENTAL STANDARDS

EPA CERCLA, Hazardous Substances and Reportable Quantities for CAS75-73-0 (U.S. Environmental Protection Agency, 2010):

Not Listed

EPA CERCLA, Hazardous Substances and Reportable Quantities, Radionuclides for CAS75-73-0 (U.S. Environmental Protection Agency, 2010):

Not Listed

EPA RCRA Hazardous Waste Number for CAS75-73-0 (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 CAS75-73-0 (U.S. Environmental Protection Agency, 2010):

Not Listed

EPA SARA Title III, Community Right-to-Know for CAS75-73-0 (40 CFR 372.65, 2006; 40 CFR 372.28, 2006):

Not Listed

DOT List of Marine Pollutants for CAS75-73-0 (49 CFR 172.101 - App. B, 2005):

Not Listed

EPA TSCA Inventory for CAS75-73-0 (EPA, 2005):

Listed as: Methane, tetrafluoro-

SHIPPING REGULATIONS

SURFACE

DOT -- Table of Hazardous Materials and Special Provisions for UN/NA Number 1982 (49 CFR 172.101, 2005):

Hazardous materials descriptions and proper shipping name: Tetrafluoromethane, or Refrigerane gas R 14

Symbol(s): Not Listed
Hazard class or Division: 2.2

2.2: Non-flammable compressed gas. See 49 CFR section 173.115 for definitions.

Identification Number: UN1982
Packing Group: Not Listed
Label(s) required (if not excepted): 2.2

2.2: Non-Flammable Gas.

Special Provisions:

Not Listed

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

Exceptions: None
Non-bulk packaging: 302
Bulk packaging: None

Quantity Limitations:

Passenger aircraft or railcar: 75 kg
Cargo aircraft only: 150 kg

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: Not Listed

ICAO International Shipping Name for UN1982 (ICAO, 2002):

Proper Shipping Name: Refrigerant gas R 14
UN Number: 1982
Proper Shipping Name: Tetrafluoromethane
UN Number: 1982

LABELS

NFPA

NFPA Hazard Ratings for CAS75-73-0 (NFPA, 2002):

Not Listed

-HANDLING AND STORAGE

SUMMARY

INDUSTRIAL CHEMICALS

It may accumulate in low ceiling spaces (because it is heavier than air) and displace air; care should be take during handling/storage (ILO , 1998).

STORAGE

CONTAINER

It is stored and shipped at 21.1 degrees C (70 degrees F) as a compressed gas at pressures up to 13,790 kPa (2000 psig) in cylinders and tube trailers (CGA, 1999).
Fluorocarbon storage vessels are commonly fabricated of steel; piping may be of copper (preferably Type K) with silver-soldered fittings; luting and gaskets are often of polytetrafluoroethylene (CGA, 1999).
This compound should be stored in a well-ventilated, cool place, protected from sunlight and other sources of heat. Containers should be checked periodically (HSDB , 2002).

INCOMPATIBILITIES

It is incompatible with aluminum (NFPA, 1997; Urben, 2000).

-PERSONAL PROTECTION

SUMMARY

RECOMMENDED PROTECTIVE CLOTHING - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (ERG, 2004)

Wear positive pressure self-contained breathing apparatus (SCBA).
Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection.
Structural firefighters' protective clothing will only provide limited protection.

For personal protection, coveralls, self-contained breathing apparatus and long rubber gloves should be worn (ITI, 1995).

RESPIRATORY PROTECTION

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

For personal protection, a self-contained breathing apparatus should be worn (ITI, 1995).

Inhalation of highly concentrated carbon tetrafluoride vapor can cause paralysis (ITI, 1995).
Carbon tetrafluoride may accumulate in low ceiling spaces (because it is heavier than air) and displace air as a simple asphyxiant (ILO , 1998). This can cause anoxia and can have narcotic effect at high concentration (ITI, 1995; Lewis, 1998).

PROTECTIVE CLOTHING

CHEMICAL PROTECTIVE CLOTHING. Search results for CAS 75-73-0.

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

Plastic Laminate

DuPont Personal Protection

Tychem 10,000

Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): Not Tested
Permeation Rate (mcg/cm2/min): Not Tested
Notes: gas
Citation: (DuPont, 2002)

Tychem 7500

Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): Not Tested
Permeation Rate (mcg/cm2/min): Not Tested
Notes: gas
Citation: (DuPont, 2002)

Tychem 9400

Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): >480
Permeation Rate (mcg/cm2/min): <0.0177
Notes: gas
Citation: (DuPont, 2002)

Tychem BR

Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): >480
Permeation Rate (mcg/cm2/min): <0.0177
Notes: Not Listed
Citation: (DuPont, 2002)

Tychem LV

Degradation Rating: Not Listed
Breakthrough Time (minutes): >480
Permeation Rate (mcg/cm2/min): <0.018
Notes: Not Listed
Citation: (DuPont, 2003)

Tychem QC

Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): Not Tested
Permeation Rate (mcg/cm2/min): Not Tested
Notes: gas
Citation: (DuPont, 2002)

Tychem SL

Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): Not Tested
Permeation Rate (mcg/cm2/min): Not Tested
Notes: gas
Citation: (DuPont, 2002)

Tychem TK

Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): >480
Permeation Rate (mcg/cm2/min): <0.0177
Notes: gas
Citation: (DuPont, 2002)
Degradation Rating: No Degradation Rating provided
Breakthrough Time (minutes): >480
Permeation Rate (mcg/cm2/min): <0.0177
Notes: Not Listed
Citation: (DuPont, 2002)

FOOTWEAR

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

GLOVES

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

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

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)

ENGINEERING CONTROLS

"A recommended safe practice is to install hydrostatic pressure relief valves in all pipelines whereever the possibility exists that LIQUID fluorocarbons may become trapped (such as between two valves) to prevent piping rupture through thermal expansion of the fluorocarbons" (CGA, 1999).

-PHYSICAL HAZARDS

FIRE HAZARD

SUMMARY

POTENTIAL FIRE OR EXPLOSION HAZARDS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (ERG, 2004)
- Some may burn, but none ignite readily.
- Containers may explode when heated.
- Ruptured cylinders may rocket.
Carbon tetrafluoride is a thermally stable, chemically very inert gas (Budavari, 2000).
It is non-flammable (Lewis, 1997).

FLAMMABILITY CLASSIFICATION

NFPA Flammability Rating for CAS75-73-0 (NFPA, 2002):

Not Listed

FIRE CONTROL/EXTINGUISHING AGENTS

FIRE PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (ERG, 2004)

Use extinguishing agent suitable for type of surrounding fire.

SMALL FIRE PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (ERG, 2004)

Dry chemical or CO2.

LARGE FIRE PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (ERG, 2004)

Water spray, fog or regular foam.
Move containers from fire area if you can do it without risk.
Damaged cylinders should be handled only by specialists.

TANK FIRE PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (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.
Do not direct water at source of leak or safety devices; icing may occur.
Withdraw immediately in case of rising sound from venting safety devices or discoloration of tank.
ALWAYS stay away from tanks engulfed in fire.
Some of these materials, if spilled, may evaporate leaving a flammable residue.

NFPA Extinguishing Methods for CAS75-73-0 (NFPA, 2002):

Not Listed

COMBUSTION TOXICITY

It releases toxic and irritating fluoride fumes when heated to decomposition (Lewis, 2000).
Carbon tetrafluoride can release hydrofluoric acid when exposed to hot surfaces or flames (ILO , 1998).

DUST/VAPOR HAZARD

It releases toxic and irritating fluoride fumes when heated to decomposition (Lewis, 2000).

Carbon tetrafluoride can release hydrofluoric acid when exposed to hot surfaces or flames (ILO , 1998).

It releases toxic and irritating fluoride fumes when heated to decomposition (Lewis, 2000).

Carbon tetrafluoride can release hydrofluoric acid when exposed to hot surfaces or flames (ILO , 1998).

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 126 (ERG, 2004)

Consider initial downwind evacuation for at least 500 meters (1/3 mile).

FIRE - PUBLIC SAFETY EVACUATION DISTANCES - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (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 126 (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 100 meters (330 feet) in all directions.
Keep unauthorized personnel away.
Stay upwind.
Many gases are heavier than air and will spread along ground and collect in low or confined areas (sewers, basements, tanks).
Keep out of low areas.
Ventilate closed spaces before entering.

AIHA ERPG Values for CAS75-73-0 (AIHA, 2006):

Not Listed

DOE TEEL Values for CAS75-73-0 (U.S. Department of Energy, Office of Emergency Management, 2010):

Listed as Carbon tetrafluoride; (Tetrafluoromethane)
TEEL-0 (units = ppm): 200
TEEL-1 (units = ppm): 600
TEEL-2 (units = ppm): 5000
TEEL-3 (units = ppm): 25000
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 CAS75-73-0 (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):

Not Listed

NIOSH IDLH Values for CAS75-73-0 (National Institute for Occupational Safety and Health, 2007):

Not Listed

CONTAINMENT/WASTE TREATMENT OPTIONS

SUMMARY

SPILL OR LEAK PRECAUTIONS - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (ERG, 2004)
- Do not touch or walk through spilled material.
- Stop leak if you can do it without risk.
- Do not direct water at spill or source of leak.
- Use water spray to reduce vapors or divert vapor cloud drift. Avoid allowing water runoff to contact spilled material.
- If possible, turn leaking containers so that gas escapes rather than liquid.
- Prevent entry into waterways, sewers, basements or confined areas.
- Allow substance to evaporate.
- Ventilate the area.
RECOMMENDED PROTECTIVE CLOTHING - EMERGENCY RESPONSE GUIDEBOOK, GUIDE 126 (ERG, 2004)
- Wear positive pressure self-contained breathing apparatus (SCBA).
- Wear chemical protective clothing that is specifically recommended by the manufacturer. It may provide little or no thermal protection.
- Structural firefighters' protective clothing will only provide limited protection.
Allowing small amounts of spilled material to bleed off into the atmosphere has been recommended in the past (ITI, 1995), although other disposal methods should be investigated as fluorocarbons have a role in the depletion of the atmospheric ozone layer (ILO, 1983; Finkel, 1983).

-ENVIRONMENTAL HAZARD MANAGEMENT

POLLUTION HAZARD

Electrolytic smelting of alumina to produce aluminum is the major anthropogenic source of tetrafluoromethane. Production and use as a low temperature refrigerant and gaseous insulator may result in tetrafluoromethane's release to the environment through various waste streams (HSDB, 2004).

At workplaces where carbon tetrafluoride is used or produced, and at aluminum smeltering plants, workers may be exposed through inhalation of the gas. The general population may be exposed to carbon tetrafluoride through inhalation of ambient air (HSDB, 2004).

Fluorocarbons have been shown to have a role in depletion of the stratospheric ozone layer (Harbison, 1998; ILO, 1998).

ENVIRONMENTAL FATE AND KINETICS

It is expected to exist solely as a vapor in the ambient air and to be degraded very slowly by reaction with hydroxyl radicals (HSDB, 2004).
It is exceedingly inert photochemically and is not expected to photodegrade in the atmosphere (HSDB, 2004).
The half life for degradation by hydroxyl radicals in vapor phase is estimated to be greater than 110 years with a rate constant of less than 4.0X10(-16) cm(3) /molecule-sec at 25 degrees C. It has an estimated atmospheric lifetime ranges from 10,000 to 50,000 years (HSDB, 2004).

WATER

SURFACE WATER
- It is not expected to adsorb to suspended solids and sediment in water column (HSDB, 2004).
- It is expected to volatilize rapidly from water surfaces (HSDB, 2004).
- It is not expected to hydrolyze (HSDB, 2004).
- The eEstimated volatilization half-life from a model river is 2.7 hours and from a model lake, 3.7 days (HSDB, 2004).

SOIL

TERRESTRIAL
- It is expected to have high mobility in soil (HSDB, 2004).
- It is expected to volatilize from both wet and dry soil surfaces (HSDB, 2004).

ABIOTIC DEGRADATION

Carbon tetrafluoride volatilizes from water and soil, existing as a vapor in air. It slowly reacts with hydroxyl radicals in the atmosphere and is not likely to photodegrade. It is not expected to hydrolyze or adsorb to suspended solids or sediment in aquatic systems. In soil, it is highly mobile. (HSDB, 2004).

BIODEGRADATION

It is not expected to biodegrade rapidly (HSDB, 2004).

BIOACCUMULATION

BIOCONCENTRATION FACTOR

1.6 (HSDB, 2004)
The potential for bioconcentration in aquatic organisms is low (HSDB, 2004).

ENVIRONMENTAL TOXICITY

No information found at the time of this review.

-PHYSICAL/CHEMICAL PROPERTIES

MOLECULAR WEIGHT

88.01

DESCRIPTION/PHYSICAL STATE

Carbon tetrafluoride is a nonflammable, odorless, colorless, and nearly inert gas with a density substantially greater than air (ITI, 1985; Lewis, 1997; Lewis, 1998).

VAPOR PRESSURE

VAPOR PRESSURE:

223.7 psia; 1542 kPa, abs (at -73.3 degrees C; -100 degrees F) (CGA, 1999)
460.5 psia; 3175 kPa, abs (at -51.1 degrees C; -60 degrees F) (CGA, 1999)
1.75X10(5) mmHg (at 25 degrees C) (HSDB , 2002)

SPECIFIC GRAVITY

OTHER TEMPERATURE AND/OR PRESSURE

GAS: 3.09 (air=1) (at 21.1 degrees C; 70 degrees F and 1 atm) (CGA, 1999)

DENSITY

NORMAL TEMPERATURE AND PRESSURE

(25 degrees C; 77 degrees F and 760 mmHg)
GAS: 3.034 g/cm(3) (HSDB , 2002)

OTHER TEMPERATURE AND/OR PRESSURE

SOLID: 1.98 g/mL (at -195 degrees C) (Budavari, 2000)
LIQUID: 1.96 g/mL (at -184 degrees C) (Lewis, 2000)
LIQUID: 1.89 g/mL (at -183 degrees C) (Budavari, 2000)
LIQUID: 1472 kg/m(3); 91.90 lb/ft(3) (at -101 degrees C; -150 degrees F) (CGA, 1999)
LIQUID: 1259 kg/m(3); 78.58 lb/ft(3) (at -73.3 degrees C; -100 degrees F) (CGA, 1999)
GAS: 3.65 kg/m(3); 0.228 lb/ft(3) (21.1 degrees C; 70 degrees F and 1 atm) (CGA, 1999)

FREEZING/MELTING POINT

FREEZING POINT

-184 degrees C; -299 degrees F (CGA, 1999; Lewis, 1997)

MELTING POINT

-183.6 degrees C (ILO , 1998; Lewis, 2000)

BOILING POINT

-127.9 degrees C; -198.3 degrees F (CGA, 1999)

AUTOIGNITION TEMPERATURE

>1100 degrees C (ILO , 1998)

SOLUBILITY

IN WATER

slightly soluble in water (ILO , 1998)
0.0015 weight % (at 25 degrees C; 77 degrees F and 1 atm) (CGA, 1999)
18.6 mg/L (at 25 degrees C) (HSDB , 2002)

IN ORGANIC SOLVENTS

Soluble in benzene and chloroform (HSDB , 2002).

OCTANOL/WATER PARTITION COEFFICIENT

log Kow = 1.18 (HSDB , 2002)

HENRY'S CONSTANT

5.15 atm-m(3)/mole (at 25 degrees C) (HSDB , 2002)

SPECTRAL CONSTANTS

4082 (Sadtler Research Laboratories Prism collection) (HSDB , 2002)

MASS

153 (Atlas of Mass Spectral Data, John Wiley & Sons, New York) (HSDB , 2002)
47 (National Bureau of Standards EPA-NIH Mass Spectra Data Base, NSRDS-NBS-63) (HSDB , 2002)

OTHER/PHYSICAL

CRITICAL PRESSURE

3745 kPa, abs; 543.2 psia (CGA, 1999)

CRITICAL TEMPERATURE

-45.7 degrees C; -50.2 degrees F (CGA, 1999)

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National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances: Acute Exposure Guideline Levels (AEGLs) for Perfluoroisobutylene (Proposed). United States Environmental Protection Agency. Washington, DC. 2009d. Available from URL: http://www.regulations.gov/search/Regs/contentStreamer?objectId=0900006480a7e26a&disposition=attachment&contentType=pdf. As accessed 2010-08-15.

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National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances: Acute Exposure Guideline Levels (AEGLs) for Phenyl Mercaptan (Proposed). United States Environmental Protection Agency. Washington, DC. 2006d. Available from URL: http://www.regulations.gov/search/Regs/contentStreamer?objectId=090000648020cc0c&disposition=attachment&contentType=pdf. As accessed 2010-08-16.

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National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances: Acute Exposure Guideline Levels (AEGLs) for Phorate (Proposed). United States Environmental Protection Agency. Washington, DC. 2008q. Available from URL: http://www.regulations.gov/search/Regs/contentStreamer?objectId=090000648096dcc8&disposition=attachment&contentType=pdf. As accessed 2010-08-12.

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National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances: Acute Exposure Guideline Levels (AEGLs) for Phosgene Oxime (Proposed). United States Environmental Protection Agency. Washington, DC. 2009f. Available from URL: http://www.regulations.gov/search/Regs/contentStreamer?objectId=0900006480a7e26d&disposition=attachment&contentType=pdf. As accessed 2010-08-12.

National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances: Acute Exposure Guideline Levels (AEGLs) for Potassium Cyanide (Proposed). United States Environmental Protection Agency. Washington, DC. 2009g. Available from URL: http://www.regulations.gov/search/Regs/contentStreamer?objectId=0900006480a7cbb9&disposition=attachment&contentType=pdf. As accessed 2010-08-15.

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National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances: Acute Exposure Guideline Levels (AEGLs) for Propargyl Alcohol (Proposed). United States Environmental Protection Agency. Washington, DC. 2006e. Available from URL: http://www.regulations.gov/search/Regs/contentStreamer?objectId=090000648020ec91&disposition=attachment&contentType=pdf. As accessed 2010-08-16.

National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances: Acute Exposure Guideline Levels (AEGLs) for Selenium Hexafluoride (Proposed). United States Environmental Protection Agency. Washington, DC. 2006f. Available from URL: http://www.regulations.gov/search/Regs/contentStreamer?objectId=090000648020ec55&disposition=attachment&contentType=pdf. As accessed 2010-08-16.

National Advisory Committee for Acute Exposure Guideline Levels for Hazardous Substances: Acute Exposure Guideline Levels (AEGLs) for Silane (Proposed). United States Environmental Protection Agency. Washington, DC. 2006g. Available from URL: http://www.regulations.gov/search/Regs/contentStreamer?objectId=090000648020d523&disposition=attachment&contentType=pdf. As accessed 2010-08-16.

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Information to evaluate chemical incidents

Information to evaluate chemical incidents

Information to evaluate chemical incidents