FLUORIDE ACTION NETWORK PESTICIDE PROJECT
Return to FAN's Pesticide Homepage
Return to Carbon tetrafluoride Index Page
Carbon tetrafluoride (Tetrafluoromethane). Profile from Hazardous Substances Data Base.
For updates: http://toxnet.nlm.nih.gov/cgi-bin/sis/htmlgen?HSDB
TETRAFLUOROMETHANE
CASRN: 75-73-0
For other data, click on the Table of Contents
Human Health Effects:
Human Toxicity Excerpts:
NARCOTIC IN HIGH CONCENTRATION.
...CAUSE OF DEATH /FROM ABUSE OF FLUOROCARBONS/...IN...DOUBT. ... LARYNGEAL
SPASM OR EDEMA, OXYGEN DISPLACEMENT, OR SENSITIZATION OF MYOCARDIUM TO ENDOGENOUS
CATECHOLAMINES WITH...VENTRICULAR FIBRILLATION APPEAR TO BE...POSSIBILITIES.
/FLUOROCARBON REFRIGERANTS & PROPELLANTS/
FREEZING OF AIRWAY SOFT TISSUES CAN PROBABLY BE ELIMINATED AS A CAUSE OF DEATH
EXCEPT IN CASES WHERE PRODUCT WAS SPRAYED DIRECTLY INTO MOUTH FROM ITS CONTAINER
OR FROM BALLOON CONTAINING SOME LIQUID. /FLUOROCARBON REFRIGERANTS & PROPELLANTS/
EARLY...HUMAN EXPERIENCE INDICATED THAT HIGH VAPOR CONCN (EG, 20%) MAY CAUSE
CONFUSION, PULMONARY IRRITATION, TREMORS & RARELY COMA, BUT...THESE EFFECTS...GENERALLY
TRANSIENT & WITHOUT LATE SEQUELAE. /FLUOROCARBON REFRIGERANTS & PROPELLANTS/
EXCESSIVE SKIN CONTACT WITH LIQ FLUOROCARBONS SHOULD BE MINIMIZED TO PREVENT
DEFATTING OF SKIN... /FLUOROCARBONS/
MODERATELY TOXIC BY INHALATION.
EXCESSIVE SKIN CONTACT WITH LIQ FLUOROCARBONS SHOULD BE MINIMIZED TO PREVENT
DEFATTING OF SKIN & POSSIBLE SKIN ABSORPTION. /FLUOROCARBONS/
Skin, Eye and Respiratory Irritations:
... HIGH VAPOR CONCN (EG, 20%) MAY CAUSE ... PULMONARY IRRITATION ... /FLUOROCARBON
REFRIGERANTS & PROPELLANTS/
Probable Routes of Human Exposure:
NIOSH (NOES Survey 1981-1983) has statistically estimated that 3,678 workers
(1,364 of these are female) are potentially exposed to tetrafluoromethane in
the US(1). Occupational exposure to tetrafluoromethane may occur through inhalation
at workplaces where tetrafluoromethane is produced or used(SRC). The general
population may be exposed to tetrafluoromethane via inhalation of ambient air(SRC).
Emergency Medical Treatment:
Emergency Medical Treatment:
| EMT Copyright Disclaimer: |
| Portions of the POISINDEX(R) database are provided here for
general reference. THE COMPLETE POISINDEX(R) DATABASE, AVAILABLE FROM MICROMEDEX,
SHOULD BE CONSULTED FOR ASSISTANCE IN THE DIAGNOSIS OR TREATMENT OF SPECIFIC
CASES. Copyright 1974-1998 Micromedex, Inc. Denver, Colorado. All Rights
Reserved. Any duplication, replication or redistribution of all or part
of the POISINDEX(R) database is a violation of Micromedex' copyrights and
is strictly prohibited.
The following Overview, *** FLUORINATED HYDROCARBONS ***, is relevant for this HSDB record chemical. |
| Life Support: |
o This overview assumes that basic life support measures
have been instituted.
|
| Clinical Effects: |
SUMMARY OF EXPOSURE
0.2.1.1 ACUTE EXPOSURE
o LOW CONCENTRATION - Inhalations such as those caused by
leaking air conditioners or refrigerators usually
result in transient eye, nose, and throat irritation.
Palpitations, light headedness, and headaches are also
seen.
o HIGH CONCENTRATION - Inhalation associated with
deliberate abuse, or spills or industrial use occurring
in poorly ventilated areas has been associated with
ventricular arrhythmias, pulmonary edema and sudden
death.
HEENT
0.2.4.1 ACUTE EXPOSURE
o EYES - Eye irritation occurs with ambient exposure.
Frostbite of the lids may be severe. Ocular
instillation results in corneal burns in rabbits.
o NOSE - Nasal irritation occurs with ambient exposure.
o THROAT - Irritation occurs. Frostbite of the lips,
tongue, buccal mucosa and hard palate developed in a
man after deliberate inhalation.
CARDIOVASCULAR
0.2.5.1 ACUTE EXPOSURE
o Inhalation of high concentrations is associated with
the development of refractory ventricular arrhythmias
and sudden death, believed to be secondary, primarily,
to myocardial sensitization to endogenous
catecholamines. Some individuals may be susceptible to
arrhythmogenic effects at lower concentrations.
RESPIRATORY
0.2.6.1 ACUTE EXPOSURE
o Pulmonary irritation, bronchial constriction, cough,
dyspnea, and chest tightness may develop after
inhalation. Chronic pulmonary hyperreactivity may
occur. Adult respiratory distress syndrome has been
reported following acute inhalational exposures.
Pulmonary edema is an autopsy finding in fatal cases.
NEUROLOGIC
0.2.7.1 ACUTE EXPOSURE
o Headache, dizziness, and disorientation are common.
Cerebral edema may be found on autopsy. A syndrome of
impaired psychomotor speed, impaired memory and
learning, and emotional lability has been described in
workers with chronic occupational exposure to
fluorinated hydrocarbons.
GASTROINTESTINAL
0.2.8.1 ACUTE EXPOSURE
o Nausea may develop. Ingestion of a small amount of
trichlorofluoromethane resulted in necrosis and
perforation of the stomach in one patient.
HEPATIC
0.2.9.1 ACUTE EXPOSURE
o Jaundice and mild elevations in transaminases may
develop after inhalational exposure or ingestion.
Hepatocellular coagulative necrosis has been observed
on liver biopsy.
DERMATOLOGIC
0.2.14.1 ACUTE EXPOSURE
o Dermal contact may result in defatting, irritation or
contact dermatitis. Severe frostbite has been reported
as an effect of freon exposure. Injection causes
transient pain, erythema and edema.
MUSCULOSKELETAL
0.2.15.1 ACUTE EXPOSURE
o Rhabdomyolysis has been reported in a worker
susceptible to malignant hyperthermia after exposure to
fluorinated hydrocarbons and also following intentional
freon inhalation. Compartment syndrome is a rare
complication of severe exposure.
REPRODUCTIVE HAZARDS
o Dichlorodifluoromethane was not teratogenic in rats and
rabbits.
o The reproductive effects of 1,1,1,2-tetrafluoroethane
were studied in rats. No adverse effects on
reproductive performance was noted or on the
development, maturation or reproductive performance of
up to two successive generations.
GENOTOXICITY
o The hydrochlorofluorocarbons, HCFC-225ca and HCFC-225cb,
were not mutagenic in the Ames reverse mutation assay,
or clastogenic in the chromosomal aberration assay with
Chinese hamster lung cells. Neither induced unscheduled
DNA synthesis in liver cells. Both of these agents were
clastogenic in the chromosomal aberration assay with
human lymphocytes.
|
| Laboratory: |
o Fluorinated hydrocarbons plasma levels are not clinically
useful.
o No specific lab work (CBC, electrolyte, urinalysis) is
needed unless otherwise indicated.
o Obtain baseline pulse oximetry or arterial blood gas
analysis.
|
| Treatment Overview: |
SUMMARY EXPOSURE
o Monitor EKG and vital signs carefully. Cardiopulmonary
resuscitation may be necessary.
ORAL EXPOSURE
o These substances may cause frostbite to the upper airway
and gastrointestinal tract after ingestion. Administer
oxygen and manage airway as clinically indicated.
Emesis, activated charcoal, and gastric lavage are not
recommended.
INHALATION EXPOSURE
o MONITOR ECG and VITAL SIGNS carefully. Cardiopulmonary
resuscitation may be necessary. AVOID CATECHOLAMINES.
o PROVIDE A QUIET CALM ATMOSPHERE to prevent adrenaline
surge if the patient is seen before the onset of cardiac
arrhythmias. Minimize physical exertion.
o MONITOR pulse oximetry or arterial blood gases.
o Provide symptomatic and supportive care.
o These substances may cause frostbite of the upper airway
with the potential for severe edema. Administer oxygen
and manage airway early in patients with evidence of
upper airway injury.
o PULMONARY EDEMA (NONCARDIOGENIC): Maintain ventilation
and oxygenation and evaluate with frequent arterial
blood gas or pulse oximetry monitoring. Early use of
PEEP and mechanical ventilation may be needed.
EYE EXPOSURE
o DECONTAMINATION: Irrigate exposed eyes with copious
amounts of tepid water for at least 15 minutes. If
irritation, pain, swelling, lacrimation, or photophobia
persist, the patient should be seen in a health care
facility.
o Ophthamologic consultation should be obtained in any
symptomatic patients.
DERMAL EXPOSURE
o DECONTAMINATION: Remove contaminated clothing and wash
exposed area thoroughly with soap and water. A
physician may need to examine the area if irritation or
pain persists.
o If frostbite has occurred, refer to dermal treatment in
the main body of this document for rewarming.
|
| Range of Toxicity: |
o Freons are very toxic when inhaled in high concentrations
and/or for extended periods. At lower concentrations or
brief exposure, freons may cause transient eye, nose, and
throat irritation. There is significant interpatient
variation and it is difficult to predict which patient
will exhibit symptoms following exposure.
|
Animal Toxicity Studies:
Non-Human Toxicity Excerpts:
EARLY ANIMAL WORK...INDICATED THAT HIGH VAPOR CONCN (EG, 20%) MAY CAUSE CONFUSION,
PULMONARY IRRITATION, TREMORS & RARELY COMA, BUT...EFFECTS...GENERALLY TRANSIENT
& WITHOUT LATE SEQUELAE. /FLUOROCARBON REFRIGERANTS & PROPELLANTS/
Metabolism/Pharmacokinetics:
Pharmacology:
Environmental Fate & Exposure:
Environmental Fate/Exposure Summary:
The major anthropogenic source of tetrafluoromethane appears to be the electrolytic
smelting of alumina to produce aluminum. Tetrafluoromethane's production and
use as a low temperature refrigerant and gaseous insulator may result in its
release to the environment through various waste streams. If released to air,
an extrapolated vapor pressure of 1.75X10+5 mm Hg at 25 deg C indicates tetrafluoromethane
is expected to exist solely as a vapor in the ambient atmosphere. Vapor-phase
tetrafluoromethane is expected to be degraded very slowly in the ambient atmosphere
by reaction with photochemically-produced hydroxyl radicals; the half-life for
this reaction in air is estimated to be >110 years. Tetrafluoromethane is
exceedingly inert photochemically, with no absorption at wavelengths longer
than 110 nm. Tetrafluoromethane's estimated atmospheric lifetime ranges from
10,000 years to 50,000 years. If released to soil, tetrafluoromethane is expected
to have high mobility based upon an estimated Koc of 100. Volatilization from
wet and dry soil surfaces is expected to be an important fate process based
upon a Henry's Law constant of 5.15 atm-cu m/mole and this compound's vapor
pressure. If released into water, tetrafluoromethane is not expected to adsorb
to suspended solids and sediment in the water column based upon the estimated
Koc of 100. Tetrafluoromethane is expected to volatilize rapidly from water
surfaces based upon its Henry's Law constant. Estimated volatilization half-lives
for a model river and model lake are 2.7 hours and 3.7 days, respectively. The
potential for bioconcentration in aquatic organisms is low based upon a BCF
of 1.6. Highly fluorinated compounds such as tetrafluoromethane are not expected
to biodegrade rapidly. Tetrafluoromethane is not expected to hydrolyze due to
the lack of hydrolyzable functional groups. Occupational exposure to tetrafluoromethane
may occur through inhalation at workplaces where tetrafluoromethane is produced
or used and at aluminum smelting plants. The general population may be exposed
to tetrafluoromethane via inhalation of ambient air. (SRC)
Probable Routes of Human Exposure:
NIOSH (NOES Survey 1981-1983) has statistically estimated that 3,678 workers
(1,364 of these are female) are potentially exposed to tetrafluoromethane in
the US(1). Occupational exposure to tetrafluoromethane may occur through inhalation
at workplaces where tetrafluoromethane is produced or used(SRC). The general
population may be exposed to tetrafluoromethane via inhalation of ambient air(SRC).
Artificial Pollution Sources:
Tetrafluoromethane's production and use as a low temperature refrigerant and
gaseous insulator(1) may result in its release to the environment through various
waste streams(SRC). The major anthropogenic source of tetrafluoromethane appears
to be the electrolytic smelting of alumina to produce aluminum; an estimated
1.3 to 3.6 kg of tetrafluoromethane were emitted per ton of aluminum produced
for the period up to about 1985(2). Atmospheric tetrafluoromethane was first
observed as an impurity in krypton(2).
Environmental Fate:
TERRESTRIAL FATE: Based on a classification scheme(1), an estimated Koc value
of 100(SRC), determined from a log Kow of 1.18(2) and a regression-derived equation(3),
indicates that tetrafluoromethane is expected to have high mobility in soil(SRC).
Volatilization of tetrafluoromethane from moist soil surfaces is expected to
be an important fate process(SRC) given a measured Henry's Law constant of 5.15
atm-cu m/mole(4). The potential for volatilization of tetrafluoromethane from
dry soil surfaces may exist(SRC) based on a vapor pressure of 1.75X10+5 mm Hg(5).
Highly fluorinated compounds such as tetrafluoromethane are not expected to
biodegrade rapidly(6).
AQUATIC FATE: Based on a classification scheme(1), an estimated Koc value
of 100(SRC), determined from a log Kow of 1.18(2) and a regression-derived equation(3),
indicates that tetrafluoromethane is not expected to adsorb to suspended solids
and sediment in water(SRC). Tetrafluoromethane is expected to volatilize rapidly
from water surfaces(3,SRC) based on a Henry's Law constant of 5.15 atm-cu m/mole(4).
Estimated volatilization half-lives for a model river and model lake are 2.7
hours and 3.7 days, respectively(3,SRC). According to a classification scheme(5),
an estimated BCF of 1.6(3,SRC), from a log Kow(2), suggests that bioconcentration
in aquatic organisms is low(SRC). Tetrafluoromethane is not expected to undergo
hydrolysis in the environment due to the lack of hydrolyzable functional groups(6).
Highly fluorinated compounds such as tetrafluoromethane are not expected to
biodegrade rapidly(7).
ATMOSPHERIC FATE: According to a model of gas/particle partitioning of semivolatile
organic compounds in the atmosphere(1), tetrafluoromethane, which has an extrapolated
vapor pressure of 1.75X10+5 mm Hg at 25 deg C(2), is expected to exist solely
as a vapor in the ambient atmosphere. Vapor-phase tetrafluoromethane is degraded
very slowly in the atmosphere by reaction with photochemically-produced hydroxyl
radicals(SRC); the half-life for this reaction in air is estimated to be >110
years(3,SRC). Tetrafluoromethane is exceedingly inert photochemically, with
no absorption at wavelengths longer than 110 nm(4). Tetrafluoromethane's estimated
atmospheric lifetime ranges from 10,000 years(5) to 50,000 years(6).
Environmental Biodegradation:
Highly chlorinated/fluorinated compounds are not expected to biodegrade rapidly(1).
Environmental Abiotic Degradation:
The rate constant for the vapor-phase reaction of tetrafluoromethane with
photochemically-produced hydroxyl radicals has been measured as <4.0X10-16
cu cm/molecule-sec at 25 deg C(1). This corresponds to an atmospheric half-life
of >110 years at an atmospheric concentration of 5X10+5 hydroxyl radicals
per cu cm(1,SRC). Tetrafluoromethane is not expected to undergo hydrolysis in
the environment due to the lack of hydrolyzable functional groups(2) nor to
directly photolyze due to the lack of absorption in the environmental spectrum(3).
Tetrafluoromethane is exceedingly inert photochemically, with no absorption
at wavelengths longer than 110 nm(3). Tetrafluoromethane's estimated atmospheric
lifetime ranges from 10,000 years(4) to 50,000 years(5).
Environmental Bioconcentration:
An estimated BCF of 1.6 was calculated for tetrafluoromethane(SRC), using
a log Kow of 1.18(1) and a regression-derived equation(2). According to a classification
scheme(3), this BCF suggests that bioconcentration in aquatic organisms is low(SRC).
Soil Adsorption/Mobility:
The Koc of tetrafluoromethane is estimated as approximately 100(SRC), using
a log Kow of 1.18(1) and a regression-derived equation(2,SRC). According to
a classification scheme(3), this estimated Koc value suggests that tetrafluoromethane
is expected to have high mobility in soil(SRC).
Volatilization from Water/Soil:
The Henry's Law constant for tetrafluoromethane is 5.15 atm-cu m/mole(1).
This Henry's Law constant indicates that tetrafluoromethane is expected to volatilize
rapidly from water surfaces(2,SRC). Based on this Henry's Law constant, the
estimated volatilization half-life from a model river (1 m deep, flowing 1 m/sec,
wind velocity of 3 m/sec) is estimated as approximately 2.7 hours(2,SRC). The
estimated volatilization half-life from a model lake (1 m deep, flowing 0.05
m/sec, wind velocity of 0.5 m/sec) is estimated as approximately 3.7 days(2,SRC).
Tetrafluoromethane's Henry's Law constant(1,SRC) indicates that volatilization
from moist soil surfaces is expected to occur(SRC). The potential for volatilization
of tetrafluoromethane from dry soil surfaces may exist(SRC) based on a vapor
pressure of 1.75X10+5 mm Hg(3).
Effluent Concentrations:
Tetrafluoromethane was detected in air samples obtained from air plumes of
aluminum production plants(1).
Atmospheric Concentrations:
Air samples collected at altitudes of 10 to 33 km at 44 deg N (southern France)
in 1980 contained tetrafluoromethane; its mixing ratio was measured as 65 parts
per trillion by volume at 14.4 km and 62 parts per trillion by volume at 33.2
km(1). Median tetrafluoromethane concentrations from remote, suburban, and source
dominated sites were 0.070, 0.095, and 0.140 ppb by volume, respectively, for
the years 1980 to 1987(2). The average daily ambient tetrafluoromethane concentration
between 1980 and 1987 for 8 sites was 0.101 ppb by volume(2).
Environmental Standards & Regulations:
Chemical/Physical Properties:
Molecular Formula:
C-F4
Molecular Weight:
88.00
Color/Form:
COLORLESS GAS
Odor:
ODORLESS
Boiling Point:
-127.8 DEG C
Melting Point:
-183.6 DEG C
Density/Specific Gravity:
3.034 g/cu cm at 25 deg C
Octanol/Water Partition Coefficient:
log Kow = 1.18
Solubilities:
SOL IN BENZENE, CHLOROFORM; SLIGHTLY SOL IN WATER
In water, 18.6 mg/l at 25 deg C.
Spectral Properties:
IR: 4082 (Sadtler Research Laboratories Prism Collection)
MASS: 153 (Atlas of Mass Spectral Data, John Wiley & Sons, New York)
MASS: 47 (National Bureau of Standards EPA-NIH Mass Spectra Data Base, NSRDS-NBS-63)
Other Chemical/Physical Properties:
SPECIFIC VOL: 4.4 CU FT/LB @ 70 DEG F
DENSITY - LIQ: 1.89 @ -183 DEG C; SOLID: 1.98 @ -195 DEG C
Thermally stable. Chemically very inert.
Henry's Law constant = 5.15 atm-cu m/mole at 25 deg C
Chemical Safety & Handling:
DOT Emergency Guidelines:
Fire or explosion: Some may burn, but none ignite readily. Containers may
explode when heated. Ruptured cylinders may rocket. /Tetrafluoromethane; Tetrafluoromethane,
compressed/
Health: 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. /Tetrafluoromethane; Tetrafluoromethane,
compressed/
Public safety: CALL Emergency Response Telephone Number. ... Isolate spill
or leak area immediately 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. /Tetrafluoromethane;
Tetrafluoromethane, compressed/
Protective clothing: Wear positive pressure self-contained breathing apparatus
(SCBA). Structural firefighters' protective clothing will only provide limited
protection. /Tetrafluoromethane; Tetrafluoromethane, compressed/
Evacuation: ... Fire: 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. /Tetrafluoromethane;
Tetrafluoromethane, compressed/
Fire: Use extinguishing agent suitable for type of surrounding fire. Small
fires: Dry chemical or CO2. Large fires: 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. Fire involving tanks: 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 the ends of tanks. Some of these materials, if spilled, may evaporate
leaving a flammable residue. /Tetrafluoromethane; Tetrafluoromethane, compressed/
Spill or leak: 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. 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. /Tetrafluoromethane; Tetrafluoromethane, compressed/
First aid: Move victim to fresh air. Call emergency medical care. Apply 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. /Tetrafluoromethane; Tetrafluoromethane,
compressed/
Skin, Eye and Respiratory Irritations:
... HIGH VAPOR CONCN (EG, 20%) MAY CAUSE ... PULMONARY IRRITATION ... /FLUOROCARBON
REFRIGERANTS & PROPELLANTS/
Fire Potential:
NONFLAMMABLE
Fire Fighting Procedures:
If material on fire or involved in fire: Extinguish fire using agent suitable
for type of surrounding fire. (Material itself does not burn or burns with difficulty.)
cool all affected containers with flooding quantities of water. Apply water
from as far a distance as possible. Do not use water on material itself. use
water spray to knock-down vapors.
Hazardous Reactivities & Incompatibilities:
Incompatible with aluminum.
Hazardous Decomposition:
When heated to decomposition it emits toxic fumes of ... /hydrogen fluoride/.
Preventive Measures:
If material not on fire and not involved in fire: Attempt to stop leak if
without undue personnel hazard. use water spray to knock-down vapors.
Personnel protection: Keep upwind. Avoid breathing vapors. ... Avoid bodily
contact with the material.
Stability/Shelf Life:
THERMALLY STABLE. CHEMICALLY VERY INERT.
Shipment Methods and Regulations:
No person may /transport,/ offer or accept a hazardous material for transportation
in commerce unless that person is registered in conformance ... and the hazardous
material is properly classed, described, packaged, marked, labeled, and in condition
for shipment as required or authorized by ... /the hazardous materials regulations
(49 CFR 171-177)./
The International Maritime Dangerous Goods Code lays down basic principles
for transporting hazardous chemicals. Detailed recommendations for individual
substances and a number of recommendations for good practice are included in
the classes dealing with such substances. A general index of technical names
has also been compiled. This index should always be consulted when attempting
to locate the appropriate procedures to be used when shipping any substance
or article.
Storage Conditions:
IN GENERAL, MATERIALS WHICH ARE TOXIC AS STORED OR WHICH CAN DECOMP INTO TOXIC
COMPONENTS...SHOULD BE STORED IN A COOL, WELL-VENTILATED PLACE, OUT OF DIRECT
RAYS OF THE SUN, AWAY FROM AREAS OF HIGH FIRE HAZARD, & SHOULD BE PERIODICALLY
INSPECTED... INCOMPATIBLE MATERIALS SHOULD BE ISOLATED FROM EACH OTHER.
May be stored in steel cylinders.
Occupational Exposure Standards:
Manufacturing/Use Information:
Major Uses:
Low temperature refrigerant; gaseous insulator.
Manufacturers:
Air Products and Chemicals, Inc, Hq, 7201 Hamilton Blvd, Allentown, PA 18195-1501,
(601) 481-4911; Industrial Gases Division; Specialty Gas Department, RD 2, P.O.
Box 351, Tamaqua, PA 18252.
Methods of Manufacturing:
REACTION OF FLUORINE WITH AMORPHOUS FORMS OF CARBON (EG, WOOD CHARCOAL) AT
AMBIENT TEMPERATURE
PREPD FROM CARBON OR CARBON MONOXIDE & FLUORINE: YOST, INORG SYN 1, 34
(1939); SIMONS, BLOCK, J AM CHEM SOC 61, 2962 (1939)...MAY ALSO BE PREPD FROM
SILICON CARBIDE + FLUORINE: PRIEST, INORG SYN 3, 178 (1950).
Tetrafluoromethane can be produced by reaction of dichlorodifluoromethane
or trichlorofluoromethane and hydrogen fluoride
in the gas phase.
Formulations/Preparations:
GRADE: 95% MIN PURITY.
Consumption Patterns:
REFRIGERANTS, 39%; FOAM BLOWING AGENTS, 17%; SOLVENTS, 14%; FLUOROPOLYMERS,
14%; STERILANT GAS, 2%; AEROSOL PROPELLANTS, 2%; FOOD FREEZANT, 1%; OTHER, 8%;
EXPORTS, 3% (1985) /FLUOROCARBONS/
U. S. Production:
(1972) PROBABLY GREATER THAN 4.54X10+5 GRAMS
(1975) PROBABLY GREATER THAN 4.54X10+5 GRAMS
U. S. Imports:
(1972) ND
(1975) ND
U. S. Exports:
(1972) ND
(1975) ND
Laboratory Methods:
Analytic Laboratory Methods:
GAS CHROMATOGRAPHIC METHOD FOR DETERMINING FLUOROCARBONS IN AIR IS DESCRIBED.
CONCN IN AIR ARE DETERMINED DIRECTLY. /FLUOROCARBONS/
A GAS CHROMATOGRAPHIC PROCEDURE FOR DETERMINING ATMOSPHERIC LEVELS OF FLUOROCARBONS
IS DESCRIBED. COLUMN IS TEMP PROGRAMMED TO SEPARATE HALOGENATED COMPONENTS WHILE
MAINTAINING SHORT RETENTION TIMES FOR EACH COMPONENT. FREON 113 INCL. /FLUOROCARBONS/
GAS CHROMATOGRAPHIC METHOD FOR MEASURING HALOCARBONS IN AMBIENT AIR SAMPLES
IS PRESENTED. /HALOCARBONS/
Special References:
Synonyms and Identifiers:
Synonyms:
R 14
**PEER REVIEWED**
ARCTON 0
**PEER REVIEWED**
CARBON FLUORIDE [CF4]
**PEER REVIEWED**
CARBON TETRAFLUORIDE
**PEER REVIEWED**
FC 14
**PEER REVIEWED**
FLUOROCARBON 14
**PEER REVIEWED**
FREON-14
**PEER REVIEWED**
HALON 14
**PEER REVIEWED**
METHANE, TETRAFLUORO-
**PEER REVIEWED**
PERFLUOROMETHANE
**PEER REVIEWED**
R 14 [REFRIGERANT]
**PEER REVIEWED**
Formulations/Preparations:
GRADE: 95% MIN PURITY.
RTECS Number:
NIOSH/FG4920000
Administrative Information:
Hazardous Substances Databank Number: 1327
Last Revision Date: 20010809
Last Review Date: Reviewed by SRP on 1/31/1998
Update History:
Complete Update on 08/09/2001, 1 field added/edited/deleted.
Complete Update on 05/16/2001, 1 field added/edited/deleted.
Complete Update on 06/12/2000, 1 field added/edited/deleted.
Complete Update on 03/28/2000, 1 field added/edited/deleted.
Complete Update on 02/02/2000, 1 field added/edited/deleted.
Complete Update on 09/21/1999, 1 field added/edited/deleted.
Complete Update on 08/26/1999, 1 field added/edited/deleted.
Complete Update on 06/19/1998, 50 fields added/edited/deleted.
Field Update on 06/02/1998, 1 field added/edited/deleted.
Field Update on 10/23/1997, 1 field added/edited/deleted.
Complete Update on 01/21/1996, 1 field added/edited/deleted.
Complete Update on 11/10/1995, 1 field added/edited/deleted.
Complete Update on 06/09/1995, 1 field added/edited/deleted.
Complete Update on 05/26/1995, 1 field added/edited/deleted.
Complete Update on 05/17/1995, 2 fields added/edited/deleted.
Complete Update on 12/22/1994, 1 field added/edited/deleted.
Complete Update on 10/19/1994, 1 field added/edited/deleted.
Complete Update on 09/16/1994, 1 field added/edited/deleted.
Complete Update on 08/18/1994, 1 field added/edited/deleted.
Complete Update on 03/25/1994, 1 field added/edited/deleted.
Complete Update on 08/07/1993, 1 field added/edited/deleted.
Complete Update on 02/05/1993, 1 field added/edited/deleted.
Field update on 12/20/1992, 1 field added/edited/deleted.
Complete Update on 01/23/1992, 1 field added/edited/deleted.
Complete Update on 10/22/1990, 3 fields added/edited/deleted.
Complete Update on 04/13/1989, 1 field added/edited/deleted.
Complete Update on 10/03/1986