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Propane,1,1,1,3,3,3-hexafluoro-

Du Pont
Material Safety Data Sheet

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"SUVA" 236fa
CEF236FA Revised 20-Feb-08 Printed 02/21/2008
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Substance ID :130000000816
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CHEMICAL PRODUCT/COMPANY IDENTIFICATION
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Material Identification

Corporate MSDS Number : DU009026
CAS Number : 690-39-1
Formula : CF3-CH2-CF3
CAS Name : 1,1,1,3,3,3-hexafluoropropane

Product Use

Flame Retardant/Fire Extinguishing Agent

Tradenames and Synonyms

HEXAFLUOROPROPANE
CC0610
Refrigerant

Company Identification

MANUFACTURER/DISTRIBUTO E.I. du Pont Canada Company
P.O. Box 2200
Streetsville
Mississauga, Ontario L5M 2H3

PHONE NUMBERS
Product Information : 1-800-387-2122
Medical Emergency : 1-800-441-3637 (24 hours)

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COMPOSITION/INFORMATION ON INGREDIENTS
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Components

Material CAS Number %
1,1,1,3,3,3-HEXAFLUOROPROPANE 690-39-1 99-100 %

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HAZARDS IDENTIFICATION
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Potential Health Effects

Inhalation of high concentrations of HFC-236fa, such as
those that may be achieved under conditions of abuse or
inappropriate use, may cause adverse central nervous system
and cardiac effects. The effects may include dizziness,
lightheadedness, confusion, weakness and unconsciousness,
Du Pont
CEF236FA Material Safety Data Sheet

and in extreme cases the heart may become sensitized to
epinephrine and may result in death without warning.
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HFC-236fa may cause frostbite if liquid or escaping vapor
contacts the skin.

HFC-236fa may cause "frostbite-like" effects if the liquid
or escaping vapors contact the eyes.

Ingestion is not considered a probable route of exposure for
HFC-236fa.

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 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

Flush area with lukewarm water. Do not use hot water. If
frostbite has occurred, call a physician.

EYE CONTACT

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

THIS MATERIAL MAY MAKE THE HEART MORE SUSCEPTIBLE TO ARRHYTHMIAS.
Catecholamines such as adrenaline, and other compounds having
similar effects, should be reserved for emergencies and then used
only with special caution.

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FIRE FIGHTING MEASURES

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Du Pont
CEF236FA Material Safety Data Sheet

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Flammable Properties

Will not burn. Not a fire or explosion hazard. "FE-36" is
used as a fire extinguishant. Hazardous gas/vapor produced
in fire is hydrogen fluoride.

Extinguishing Media

Use media appropriate for surrounding material.

Fire Fighting Instructions

(For example: when "FE-36" is exposed to fire from
surrounding material) - Wear self-contained breathing
apparatus. Wear full protective equipment. Cool
tank/container with water spray.

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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.

Keep upwind of leak - evacuate until gas has dispersed.

Accidental Release Measures

Ventilate area before reentering.

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HANDLING AND STORAGE
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Handling (Personnel)

Do not breathe gas. Do not get in eyes, on skin, or on clothing.
Wash thoroughly after handling.

Handling (Physical Aspects)

Keep away from sparks, flames and hot (glowing) surfaces.

# 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 (>3000 psig) piping or systems. Do NOT heat

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Du Pont
CEF236FA Material Safety Data Sheet

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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

Use only with adequate ventilation. Keep container tightly closed.

Vapors of the compound are heavier than air, posing a
hazard of asphyxia if they are trapped in enclosed or low
places.

Personal Protective Equipment

EYE/FACE PROTECTION

Wear safety glasses or coverall chemical splash goggles.

RESPIRATORS

Wear NIOSH approved respiratory protection, as appropriate.

PROTECTIVE CLOTHING

Wear impervious clothing, such as gloves, apron, boots, or whole
bodysuit as appropriate.

Exposure Guidelines

Exposure Limits
"SUVA" 236fa
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??s 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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Printed on 02/21/2008
Du Pont
CEF236FA Material Safety Data Sheet

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PHYSICAL AND CHEMICAL PROPERTIES
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Physical Data

Boiling Point : -1.4 C (29.5 F) @ 760 mm Hg
Vapor Pressure : 272.4 kPa @ 25 C (77 F)
Melting Point : -98 C (-144 F)
Freezing Point : -103 C (-153 F)
Form : Liquefied gas
Color : Colorless
Specific Gravity : 1.370 gm/cc

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STABILITY AND REACTIVITY
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Chemical Stability

Stable.

Incompatibility with Other Materials

Incompatible with strong bases, metallic sodium, potassium,
lithium.

Decomposition

Decomposes in open flames and hot (glowing) surfaces.

Hazardous gas/vapor produced is hydrogen fluoride.

Polymerization

Polymerization will not occur.

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TOXICOLOGICAL INFORMATION
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Animal Data

HFC 236fa

Inhalation 4 hour LC50: > 457,000 ppm in rats

Single exposure by inhalation caused narcosis and cardiac
sensitization, a potentially fatal disturbance of heart
rhythm associated with a heightened sensitivity to the
action of epinephrine; in a cardiac sensitization screening
test in dogs exposed to concentrations of 50,000 to 250,000
ppm evidence of sensitization occurred at 150,000 ppm.
Repeated exposures caused a reduced startling response in
rats. No other significant toxicological effects were
observed. No-Observed-Adverse-Effect-Level (NOAEL): 20,000
ppm.

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Du Pont
CEF236FA Material Safety Data Sheet

Developmental studies conducted in rats and rabbits at dose
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levels of 5000, 20,000 or 50,000 ppm produced no evidence of
developmental toxicity. HFC 236fa was not uniquely toxic to
the rat or rabbit conceptus. Specific studies to evaluate
the effect on female reproductive performance have not been
conducted; however, limited information obtained from
studies on developmental toxicity do not indicate adverse
effects on female reproductive performance. Tests have
shown that HFC 236fa does not cause genetic damage in
bacterial or mammalian cell cultures. No animal data are
available to define carcinogenic effects of HFC 236fa.

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ECOLOGICAL INFORMATION
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Ecotoxicological Information

AQUATIC TOXICITY:

96 hour LC50 - Zebra fish: 292 mg/L
96 hour LC50 - Freshwater algae: > 186 mg/L
48 hour LC50 - Daphnia magna: 299 mg/L

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DISPOSAL CONSIDERATIONS
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Waste Disposal

Treatment, storage, transportation, and disposal must be in
accordance with applicable Federal, State/Provincial, and Local
regulations.

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TRANSPORTATION INFORMATION
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Shipping Information

Not Regulated as a hazardous material by DOT, IMO, or IATA.

Shipping Information -- Canada

This material is Not Regulated.

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REGULATORY INFORMATION
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U.S. Federal Regulations

TSCA Inventory Status : Listed.

Canadian Regulations

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Du Pont
CEF236FA Material Safety Data Sheet

This is not a WHMIS Controlled Product.
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This product has been classified in accordance with the hazard
criteria of the CPR and the MSDS contains all the information
required by the CPR.

CEPA Status : All components either on DSL, or
notified.

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OTHER INFORMATION
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NFPA, NPCA-HMIS

NPCA-HMIS Rating
Health :1
Flammability :0
Reactivity :1

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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
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# Indicates updated section.

End of MSDS

Printed on 02/21/2008

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