The MSDS format adheres to the standards and regulatory requirements
of the United States and may not meet regulatory requirements
in other countries.
DuPont Page 1
Material Safety Data Sheet
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"DYMEL" 134a
6001FR Revised 4-NOV-2002
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CHEMICAL PRODUCT/COMPANY IDENTIFICATION
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Material Identification
"DYMEL" is a registered trademark of DuPont.
Corporate MSDS Number : DU000693
CAS Number : 811-97-2
Formula : CH2FCF3
CAS Name : 1,1,1,2-TETRAFLUOROETHANE
Tradenames and Synonyms
CC0050
Company Identification
MANUFACTURER/DISTRIBUTOR
DuPont Fluoroproducts
1007 Market Street
Wilmington, DE 19898
PHONE NUMBERS
Product Information : 1-800-441-7515 (outside the U.S.
302-774-1000)
Transport Emergency : CHEMTREC 1-800-424-9300(outside U.S.
703-527-3887)
Medical Emergency : 1-800-441-3637 (outside the U.S.
302-774-1000)
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COMPOSITION/INFORMATION ON INGREDIENTS
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Components
Material CAS Number %
ETHANE, 1,1,1,2-TETRAFLUORO- 811-97-2 100
(HFC-134a)
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HAZARDS IDENTIFICATION
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Potential Health Effects
INHALATION
ETHANE, 1,1,1,2-TETRAFLUORO-
6001FR DuPont Page 2
Material Safety Data Sheet
(HAZARDS IDENTIFICATION - Continued)
Gross overexposure may cause: Central nervous system depression
with dizziness, confusion, incoordination, drowsiness or
unconsciousness. Irregular heart beat with a strange sensation in
the chest, "heart thumping", apprehension, lightheadedness,
feeling of fainting, dizziness, weakness, sometimes progressing to
loss of consciousness and death. Suffocation, if air is displaced
by vapors.
SKIN CONTACT
ETHANE, 1,1,1,2-TETRAFLUORO-
Immediate effects of overexposure may include: Frostbite, if
liquid or escaping vapor contacts the skin.
EYE CONTACT
ETHANE, 1,1,1,2-TETRAFLUORO-
"Frostbite-like" effects may occur if the liquid or escaping
vapors contact the eyes.
ADDITIONAL HEALTH EFFECTS
ETHANE, 1,1,1,2-TETRAFLUORO-
Increased susceptibility to the effects of this material may be
observed in persons with pre-existing disease of the: central
nervous system, cardiovascular system.
Carcinogenicity Information
None of the components present in this material at concentrations
equal to or greater than 0.1% are listed by IARC, NTP, OSHA or ACGIH
as a carcinogen.
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FIRST AID MEASURES
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First Aid
INHALATION
If high concentrations are inhaled, immediately remove to fresh
air. Keep person calm. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen. Call a
physician.
SKIN CONTACT
In case of contact, immediately flush skin with plenty of water
for at least 15 minutes, while removing contaminated clothing and
shoes. Call a physician. Wash contaminated clothing before
reuse. Treat for frostbite if necessary by gently warming
affected area.
EYE CONTACT
6001FR DuPont Page 3
Material Safety Data Sheet
(FIRST AID MEASURES - Continued)
In case of contact, immediately flush eyes with plenty of water
for at least 15 minutes. Call a physician.
INGESTION
Ingestion is not considered a potential route of exposure.
Notes to Physicians
Because of possible disturbances of cardiac rhythm, catecholamine
drugs, such as epinephrine, should only be used with special
caution in situations of emergency life support.
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FIRE FIGHTING MEASURES
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Flammable Properties
Flash Point : No flash point
Flammable Limits in Air, % by Volume:
LEL : None per ASTM E681
UEL : None per ASTM E681
Autoignition : >743 C(>1369 F)
Fire and Explosion Hazards:
Cylinders may rupture under fire conditions. Decomposition
may occur.
Contact of welding or soldering torch flame with high
concentrations of refrigerant can result in visible changes
in the size and color of torch flames. This flame effect
will only occur in concentrations of product well above the
recommended exposure limit, therefore stop all work and
ventilate to disperse refrigerant vapors from the work area
before using any open flames.
HFC-134a is not flammable in air at temperatures up to
100 deg. C (212 deg. F) at atmospheric pressure. However,
mixtures of HFC-134a with high concentrations of air at
elevated pressure and/or temperature can become combustible
in the presence of an ignition source. HFC-134a can
also become combustible in an oxygen enriched environment
(oxygen concentrations greater than that in air). Whether a
mixture containing HFC-134a and air, or HFC-134a in
an oxygen enriched atmosphere become combustible depends on
the inter-relationship of 1) the temperature 2) the
pressure, and 3) the proportion of oxygen in the mixture. In
general, HFC-134a should not be allowed to exist with
air above atmospheric pressure or at high temperatures; or
in an oxygen enriched environment. For example HFC-134a
should NOT be mixed with air under pressure for leak testing
or other purposes.
6001FR DuPont Page 4
Material Safety Data Sheet
(FIRE FIGHTING MEASURES - Continued)
Experimental data have also been reported which indicate
combustibility of HFC-134a in the presence of certain
concentrations of chlorine.
Extinguishing Media
Use media appropriate for surrounding material.
Fire Fighting Instructions
Cool tank/container with water spray. Self-contained breathing
apparatus (SCBA) may be required if cylinders rupture or release
under fire conditions.
Water runoff should be contained and neutralized prior to
release.
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ACCIDENTAL RELEASE MEASURES
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Safeguards (Personnel)
NOTE: Review FIRE FIGHTING MEASURES and HANDLING (PERSONNEL)
sections before proceeding with clean-up. Use appropriate
PERSONAL PROTECTIVE EQUIPMENT during clean-up.
Ventilate area, especially low or enclosed places where heavy
vapors might collect. Remove open flames. Use self-contained
breathing apparatus (SCBA) if large spill or leak occurs.
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HANDLING AND STORAGE
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Handling (Personnel)
Use with sufficient ventilation to keep employee exposure below
recommended limits.
Handling (Physical Aspects)
HFC-134a should not be mixed with air for leak testing or used for
any other purpose above atmospheric pressure. See Flammable
Properties section. Contact with chlorine or other strong
oxidizing agents should also be avoided.
# Storage
Store in a clean, dry place. Do not heat above 52 C (126 F).
6001FR DuPont Page 5
Material Safety Data Sheet
(HANDLING AND STORAGE - Continued)
Valve protection caps and valve cutlet threaded plugs must
remain in place unless container is secured with valve
outlet piped to use point. Do NOT drag, slide or roll
cylinders. Use a suitable hand truck for cylinder movement.
Never attempt to lift cylinder by its cap. Use a pressure
reducing regulator when connecting cylinder to lower
pressure (>3000 psig) piping or systems. Do NOT heat
cylinder. Use a check valve or trap in the discharge line
to prevent hazardous back flow into the cylinder.
Cylinders should be stored upright and firmly secured to
prevent falling or being knocked over. Separate full
containers from empty containers. Storage area temperatures
should not exceed 125 deg F (52 deg C) and should be free of
combustible materials. Avoid area where salt or other
corrosive materials are present. Avoid excessive inventory
and storage time. Use a first-in first-out system. Keep
accurate inventory records.
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EXPOSURE CONTROLS/PERSONAL PROTECTION
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Engineering Controls
Normal ventilation for standard manufacturing procedures is
generally adequate. Local exhaust should be used when large
amounts are released. Mechanical ventilation should be used in
low or enclosed places. Refrigerant concentration monitors may be
necessary to determine vapor concentrations in work areas prior to
use of torches or other open flames, or if employees are entering
enclosed areas.
Personal Protective Equipment
Impervious gloves and chemical splash goggles should be used when
handling liquid.
Under normal manufacturing conditions, no respiratory protection
is required when using this product.
Self-contained breathing apparatus (SCBA) is required if a large
release occurs.
Exposure Guidelines
6001FR DuPont Page 6
Material Safety Data Sheet
Exposure Limits
"DYMEL" 134a
PEL (OSHA) : None Established
TLV (ACGIH) : None Established
AEL * (DuPont) : 1000 ppm, 8 & 12 Hr. TWA
WEEL (AIHA) : 1000 ppm, 8 Hr. TWA
* AEL is DuPont鈥檚 Acceptable Exposure Limit. Where governmentally
imposed occupational exposure limits which are lower than the AEL
are in effect, such limits shall take precedence.
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PHYSICAL AND CHEMICAL PROPERTIES
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Physical Data
Boiling Point : -26.5 C (-15.7 F) @ 736 mm Hg
Vapor Pressure : 96 psia @ 25 C (77 F)
Vapor Density : 3.6 (Air=1.0) @ 25 C (77 F)
% Volatiles : 100 WT%
Solubility in Water : 0.15 WT% @ 25 C (77 F)
@ 14.7 psia
Odor : Ether (slight).
Form : Liquified Gas.
Color : Colorless.
Liquid Density : 1.21 g/cm3 @ 25 C (77 F)
Specific Gravity : 1.208 @ 77 F (25 C)
Evaporation Rate : (CCL4 = 1); greater than 1
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STABILITY AND REACTIVITY
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Chemical Stability
Stable.
Conditions to Avoid
Avoid open flames and high temperatures.
Incompatibility with Other Materials
Incompatible with alkali or alkaline earth metals - powdered Al,
Zn, Be, etc.
Decomposition
Decomposition products are hazardous. This material can be
decomposed by high temperatures (open flames, glowing metal
surfaces, etc.) forming hydrofluoric acid and possibly carbonyl
fluoride.
These materials are toxic and irritating. Contact should be
avoided.
6001FR DuPont Page 7
Material Safety Data Sheet
(STABILITY AND REACTIVITY - Continued)
Polymerization
Polymerization will not occur.
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TOXICOLOGICAL INFORMATION
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Animal Data
ETHANE, 1,1,1,2-TETRAFLUORO-
EYE:
A short duration spray of vapor produced very slight eye
irritation.
SKIN:
Animal testing indicates this material is a slight skin irritant,
but not a skin sensitizer.
INHALATION:
4 hour, ALC, rat: 567,000 ppm.
Single exposure caused: Cardiac sensitization, a potentially fatal
disturbance of heart rhythm associated with a heightened
sensitivity to the action of epinephrine.
Lowest-Observed-Adverse-Effect-Level for cardiac sensitization:
75,000 ppm. Single exposure caused: Lethargy. Narcosis.
Increased respiratory rates. These effects were temporary.
Single exposure to near lethal doses caused: Pulmonary edema.
Repeated exposure caused: Increased adrenals, liver, spleen
weight. Decreased uterine, prostate weight. Repeated dosing of
higher concentrations caused: the following temporary effects -
Tremors. Incoordination.
CARCINOGENIC, DEVELOPMENTAL, REPRODUCTIVE, MUTAGENIC EFFECTS:
In a two-year inhalation study, HFC-134a, at a concentration of
50,000 ppm, produced an increase in late-occurring benign
testicular tumors, testicular hyperplasia and testicular weight.
The no-effect-level for this study was 10,000 ppm. Animal data
show slight fetotoxicity but only at exposure levels producing
other toxic effects in the adult animal. Reproductive data on
male mice show: No change in reproductive performance. Tests have
shown that this material does not cause genetic damage in
bacterial or mammalian cell cultures, or in animals. In animal
testing, this material has not caused permanent genetic damage in
reproductive cells of mammals (has not produced heritable genetic
damage).
6001FR DuPont Page 8
Material Safety Data Sheet
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ECOLOGICAL INFORMATION
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Ecotoxicological Information
AQUATIC TOXICITY:
48 hour EC50 - Daphnia magna: 980 mg/L.
96 hour LC50 - Rainbow trout: 450 mg/L
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DISPOSAL CONSIDERATIONS
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Waste Disposal
Contaminated HFC-134a can be recovered by distillation or removed
to a permitted waste disposal facility. Comply with Federal,
State, and local regulations.
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TRANSPORTATION INFORMATION
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Shipping Information
DOT/IMO
Proper Shipping Name : 1,1,1,2-TETRAFLUOROETHANE
Hazard Class : 2.2
UN No. : 3159
DOT/IMO Label : NONFLAMMABLE GAS
Shipping Containers
Tank Cars.
Tank Trucks.
Ton Tanks.
Cylinders.
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REGULATORY INFORMATION
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U.S. Federal Regulations
TSCA Inventory Status : Reported/Included.
TITLE III HAZARD CLASSIFICATIONS SECTIONS 311, 312
Acute : Yes
Chronic : Yes
Fire : No
Reactivity : No
Pressure : Yes
HAZARDOUS CHEMICAL LISTS
SARA Extremely Hazardous Substance: No
CERCLA Hazardous Substance : No
SARA Toxic Chemical : No
6001FR DuPont Page 9
Material Safety Data Sheet
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OTHER INFORMATION
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NFPA, NPCA-HMIS
NPCA-HMIS Rating
Health :1
Flammability :0
Reactivity :1
Personal Protection rating to be supplied by user depending on use
conditions.
Additional Information
MEDICAL USE: CAUTION: Do not use in medical applications
involving permanent implantation in the human body. For other
medical applications see DuPont CAUTION Bulletin No. H-50102.
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The data in this Material Safety Data Sheet relates only to the
specific material designated herein and does not relate to use in
combination with any other material or in any process.
Responsibility for MSDS : MSDS Coordinator
> : DuPont Fluoroproducts
Address : Wilmington, DE 19898
Telephone : (800) 441-7515
# Indicates updated section.
This information is based upon technical information believed to be
reliable. It is subject to revision as additional knowledge and
experience is gained.
End of MSDS
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