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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"ZYRON" 23 N5
6022FR Revised 4-NOV-2002
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CHEMICAL PRODUCT/COMPANY IDENTIFICATION
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Material Identification
"ZYRON" is a registered trademark of DuPont.
Corporate MSDS Number : DU001064
CAS Number : 75-46-7
Formula : CHF3
CAS Name : Trifluoromethane
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 %
METHANE, TRIFLUORO- 75-46-7 100
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HAZARDS IDENTIFICATION
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Potential Health Effects
Inhalation of high concentrations of vapor is harmful and
may cause heart irregularities, unconsciousness, or death.
Intentional misuse or deliberate inhalation may cause death
without warning. Vapor reduces oxygen available for
breathing and is heavier than air. Liquid contact can cause
frostbite.
HUMAN HEALTH EFFECTS:
Overexposure by inhalation may include nonspecific
discomfort such as nausea, headache, or weakness; temporary
nervous system depression with anesthetic effects such as
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Material Safety Data Sheet
(HAZARDS IDENTIFICATION - Continued)
dizziness, headache, confusion, incoordination, and loss of
consciousness; or with gross overexposure (>20%), possibly
temporary alteration of the heart鈥檚 electrical activity with
irregular pulse, palpitations, or inadequate circulation.
Individuals with preexisting diseases of the central nervous
or cardiovascular system may have increased susceptibility
to the toxicity of excessive exposures. Eye or skin contact
with the liquid may cause frostbite.
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
Immediately remove to fresh air. Keep person calm. Call
a physician. If not breathing, give artificial
respiration. If breathing is difficult, give oxygen.
SKIN CONTACT
Flush with water. Treat for frostbite if necessary by
gently warming affected areas.
EYE CONTACT
In case of liquid contact, immediately flush eyes with
plenty of water for 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 a epinephrine, should be
considered only as a last resort in life-threatening
emergencies.
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Material Safety Data Sheet
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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: Not determined
Fire and Explosion Hazards:
Containers 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 limits, therefore, stop all work and
ventilate to disperse refrigerant vapors from the work area
before using any open flames.
HFC-23 is not flammable in air at temperatures up to 100
deg. C (212 deg. F) at atmospheric pressure. However,
mixtures of HFC-23 with high concentrations of air at
elevated pressure and/or temperature can become combustible
in the presence of an ignition source. HFC-23 can also
become combustible in an oxygen enriched environment (oxygen
concentrations greater than that in air). Whether a mixture
containing HFC-23 and air, or HFC-23 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-23 should not be allowed to exist with air above
atmospheric pressure or at high temperatures; or in an
oxygen enriched environment. For example, HFC-23 should NOT
be mixed with air under pressure for leak testing or other
purposes.
Extinguishing Media
As appropriate for combustibles in area.
Fire Fighting Instructions
Use water spray or fog to cool containers. Self-contained
breathing apparatus (SCBA) is required if cylinders rupture
or release under fire conditions. Water runoff should be
contained and neutralized prior to release.
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Material Safety Data Sheet
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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.
Accidental Release Measures
Material evaporates at atmospheric pressure (vaporizes).
Ventilate area, especially low places where heavy vapors
might collect. Remove open flames. Wear self-contained
breathing apparatus (SCBA) for large spills or when a
release occurs.
DuPont Fire Emergency Exposure Limits (FEEL) are established
to facilitate the safe release of a fire extinguishant into
spaces normally occupied by people to extinguish a fire or
prevent an explosion and specify airborne concentrations of
brief durations which should not result in permanent adverse
health effects or interfere with escape. For more
information on the applicability of FEEL鈥檚, contact DuPont.
The DuPont Fire Emergency Exposure Limit (FEEL) for this
material is 20% v/v for up to 15 minutes with a 1 minute
not-to-exceed ceiling of 23% v/v.
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HANDLING AND STORAGE
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Handling (Personnel)
Avoid breathing high concentrations of vapor. Avoid contact
of liquid with eyes and prolonged skin exposure. Use with
sufficient ventilation to keep employee exposure below
recommended limits.
# Storage
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 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
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Material Safety Data Sheet
(HANDLING AND STORAGE - Continued)
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 routine 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.
Personal Protective Equipment
Impervious gloves should be used when handling liquid.
Chemical splash goggles should be worn 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
spill or release occurs.
Exposure Guidelines
Exposure Limits
"ZYRON" 23 N5
PEL (OSHA) : None Established
TLV (ACGIH) : None Established
AEL * (DuPont) : 1000 ppm, 8 & 12 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 : -82.1 C (-115.8 F)
Vapor Pressure : 686 psig at 25 deg C (77 deg F)
Vapor Density : 2.4 (Air = 1)
% Volatiles : 100 WT%
Solubility in Water : 0.1 WT% @ 25 C (77 F)
Odor : Slight ethereal
Form : Compressed gas or liquefied gas
Color : Clear, colorless
Density : 1.44 g/cc at -82 deg C (-115.7 deg F)
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Material Safety Data Sheet
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STABILITY AND REACTIVITY
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Chemical Stability
Material is stable. However, 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 HF, COF2, or CO. These materials
are toxic and irritating. Contact should be avoided.
Polymerization
Polymerization will not occur.
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TOXICOLOGICAL INFORMATION
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Animal Data
Inhalation 4-hour LC50: >663,000 ppm in rats
HFC-23 is untested for skin and eye irritancy, and for
animal sensitization.
Effects from single high inhalation exposure to HFC-23
include anaesthetic effects, and nonspecific effects such as
weight loss were observed at concentrations >22%. No
cardiac sensitization was observed in dogs after breathing
800,000 ppm for periods of 5-10 minutes following
epinephrine challenge. In another test, dogs exposed to up
to 30% or up to 50% (with aditional oxygen), had no positive
responses. No cardiac sensitization occurred in baboons
exposed by inhalation to 10%, 30%, 50%, or 70% HFC-23 before
or after an epinephrine challenge; there was a dose-related
decrease in heart rates and differences in respiratory rates
during exposure.
No animal tests are available to define the carcinogenic
hazards of HFC-23. The maternal and developmental NOAEL was
50,000 ppm. HFC-23 is not considered a unique developmental
hazard to the conceptus. There were no developmental or
reproductive effects.
Tests have shown that HFC-23 does not produce genetic damage
in bacterial or mammalian cell cultures. It has not
produced genetic damage in tests on animals.
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Material Safety Data Sheet
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DISPOSAL CONSIDERATIONS
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Waste Disposal
Reclaim by distillation or remove to permitted waste
facility. Dispose of in accordance with all Federal, State,
and local regulations.
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TRANSPORTATION INFORMATION
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Shipping Information
DOT/IMO/IATA
Proper Shipping Name : Trifluoromethane
Hazard Class : 2.2
UN No. : 1984
DOT/IMO Label : Nonflammable Gas
Shipping Containers
Cylinders
Ton Tanks
Tank Trucks
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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 : No
Fire : No
Reactivity : No
Pressure : Yes
HAZARDOUS CHEMICAL LISTS
SARA Extremely
Hazardous Substance - No
CERCLA Hazardous Substance - No
SARA Toxic Chemical - No
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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.
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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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