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MSDS Material Safety Data Sheet
CAS

75-45-6
75-37-6
2837-89-0

File Name: msds_dupont_com---PEN_09004a2f80006cc0.asp
    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

----------------------------------------------------------------------
"SUVA" MP39 (R401A) and "SUVA" MP66 (R401B)
3030FR Revised 29-AUG-2001
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----------------------------------------------------------------------
CHEMICAL PRODUCT/COMPANY IDENTIFICATION
----------------------------------------------------------------------
Material Identification

"SUVA" is a registered trademark of DuPont.

Corporate MSDS Number : DU004507
Formula : CHClF2/CH3CHF2/CHClFCF3

Company Identification

MANUFACTURER/DISTRIBUTOR
DuPont Chemical Solutions Enterprise
1007 Market Street
Wilmington, DE 19898

PHONE NUMBERS
Product Information : 1-800-441-7515
Transport Emergency : CHEMTREC 1-800-424-9300
Medical Emergency : 1-800-441-3637

----------------------------------------------------------------------
COMPOSITION/INFORMATION ON INGREDIENTS
----------------------------------------------------------------------
Components

Material CAS Number %
"SUVA" MP39 (R-401A)
* METHANE, CHLORODIFLUORO- (HCFC-22) 75-45-6 53
ETHANE, 1,1-DIFLUORO- (HFC-152a) 75-37-6 13
* ETHANE, 2-CHLORO-1,1,1,2-TETRAFLUORO 2837-89-0 34
(HCFC-124)

"SUVA" MP66 (R-401B)
* METHANE, CHLORODIFLUORO- (HCFC-22) 75-45-6 61
ETHANE, 1,1-DIFLUORO- (HFC-152a) 75-37-6 11
* ETHANE, 2-CHLORO-1,1,1,2-TETRAFLUORO 2837-89-0 28
(HCFC-124)

* Disclosure as a toxic chemical is required under Section 313 of
Title III of the Superfund Amendments and Reauthorization Act of 1986
and 40 CFR part 372.
3030FR DuPont Page 2
Material Safety Data Sheet

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HAZARDS IDENTIFICATION
----------------------------------------------------------------------
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:

Skin contact may cause frostbite from exposure to the
liquid. Inhalation may include nonspecific discomfort, such
as nausea, headache, or weakness; or temporary nervous
system depression with anesthetic effects such as dizziness,
headache, confusion, incoordination, and loss of
consciousness.

Higher exposures to vapors may lead to these effects:
temporary lung irritation effects with cough, discomfort,
difficulty breathing, or shortness of breath; temporary
alteration of the heart鈥檚 electrical activity with irregular
pulse, palpitations, or inadequate circulation; abnormal
kidney functon as detected by laboratory tests; or fatality
from gross overexposure. Individuals with preexisting
diseases of the central nervous system, cardiovascular
system, lungs or kidneys may have increased susceptibility
to the toxicity of excessive exposures.

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.

----------------------------------------------------------------------
FIRST AID MEASURES
----------------------------------------------------------------------
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

Flush skin with water for at least 15 minutes after excessive
contact. Seek medical assistance if irritation is present. Wash
contaminated clothing before reuse. Treat for frostbite if
necessary by gently warming affected area.
3030FR DuPont Page 3
Material Safety Data Sheet

(FIRST AID MEASURES - Continued)

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

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.

----------------------------------------------------------------------
FIRE FIGHTING MEASURES
----------------------------------------------------------------------
# Flammable Properties

Flash Point : No flash point

Flammable Limits in Air, % by Volume:
LEL : None per ASTM E681
UEL : None per ASTM E681
Autoignition: 681 C (1258 F) R-401A
685 C (1265 F) R-401B

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.

R-401A and R-401B are not flammable in air at temperatures
up to 100 deg C (212 deg F) at atmospheric pressure.
However, mixtures of these products with high concentrations
of air at elevated pressure and/or temperature can become
combustible in the presence of an ignition source. These
products can also become combustible in an oxygen enriched
environment (oxygen concentrations greater than that in
air). Whether a mixture containing these products and air,
or these products in an oxygen enriched atmosphere becomes
combustible depends on the inter-relationship of 1) the
temperature 2) the pressure, and 3) the proportion of oxygen
in the mixture. In general, these products should not be
allowed to exist with air above atmospheric pressure or at
3030FR DuPont Page 4
Material Safety Data Sheet

(FIRE FIGHTING MEASURES - Continued)

high temperatures; or in an oxygen enriched environment.
For example: these products should NOT be mixed with air
under pressure for leak testing or other purposes.

Experimental data have also been reported which indicate
combustibility of HCFC-22, a component in these products, in
the presence 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.

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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.

Spill Clean Up

Comply with Federal, State, and local regulations for reporting
releases.

----------------------------------------------------------------------
HANDLING AND STORAGE
----------------------------------------------------------------------
Handling (Personnel)

Avoid breathing vapors or mist. Avoid contact with eyes or skin.
Use with sufficient ventilation to keep employee exposure below
recommended limits.

Storage

Store in a clean, dry place. Do not heat above 52 C (126 F).
3030FR DuPont Page 5
Material Safety Data Sheet

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EXPOSURE CONTROLS/PERSONAL PROTECTION
----------------------------------------------------------------------
Engineering Controls

Use sufficient ventilation to keep employee exposure below
recommended limits. 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

Lined butyl gloves should be used to avoid prolonged or repeated
exposure.

Chemical splash goggles should be available for use as needed to
prevent eye contact.

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

Applicable Exposure Limits
METHANE, CHLORODIFLUORO- (HCFC-22)
PEL (OSHA) : None Established
TLV (ACGIH) : 1,000 ppm, 3,540 mg/m3, 8 Hr. TWA, A4
AEL * (DuPont) : None Established

ETHANE, 1,1-DIFLUORO- (HFC-152a)
PEL (OSHA) : None Established
TLV (ACGIH) : None Established
AEL * (DuPont) : 1000 ppm, 8 Hr. TWA
WEEL (AIHA) : 1000 ppm, 8 Hr. TWA

ETHANE, 2-CHLORO-1,1,1,2-TETRAFLUORO
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.
3030FR DuPont Page 6
Material Safety Data Sheet

(Applicable Exposure Limits - Continued)

Exposure Guideline Comments

Applicable Exposure Limits for Mixtures:

"SUVA" MP39 (R-401A)
Estimated AEL * (DuPont) : 1000 ppm, 8 & 12 Hr. TWA **

"SUVA" MP66 (R-401B)
Estimated AEL * (DuPont) : 1000 ppm, 8 & 12 Hr. TWA **

** Estimated AEL is calculated according to Appendix C of
The ACGIH Handbook "THRESHOLD LIMIT VALUES for Chemical
Substances and Physical Agents"

----------------------------------------------------------------------
PHYSICAL AND CHEMICAL PROPERTIES
----------------------------------------------------------------------
Physical Data

Boiling Point
of Saturated Liquid : -33 C (-27 F) "SUVA" MP39

Vapor Pressure
of Saturated Liquid : 112.1 psia @ 25 C (77 F) "SUVA" MP39

Vapor Density : 3.3 (Air=1.0) @ 25 C (77 F) "SUVA" MP39
Liquid Density : 1.194 g/cm3 @ 25 C (77 F) "SUVA" MP39

Boiling Point
of Saturated Liquid : -34.6 C (-30.3 F) "SUVA" MP66

Vapor Pressure
of Saturated Liquid : 118.8 psia @ 25 C (77 F) "SUVA" MP66

Vapor Density : 3.2 (Air=1.0) @ 25 C (77 F) "SUVA" MP66
Liquid Density : 1.193 g/cm3 @ 25 C (77 F) "SUVA" MP66

% Volatiles : 100 WT%
Evaporation Rate : >1 (CCl4=1.0)
Solubility in Water : 0.1 WT% @ 25 C (77 F)
Odor : Ether (slight).
Form : Liquified Gas.
Color : Clear, Colorless.

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STABILITY AND REACTIVITY
----------------------------------------------------------------------
Chemical Stability

Stable.

Conditions to Avoid

Avoid open flames and high temperatures.
3030FR DuPont Page 7
Material Safety Data Sheet

(STABILITY AND REACTIVITY - Continued)

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 hydrochloric and hydrofluoric acids, and
possibly carbonyl halides.

Polymerization

Polymerization will not occur.

----------------------------------------------------------------------
TOXICOLOGICAL INFORMATION
----------------------------------------------------------------------
Animal Data

The blend is untested.

CHLORODIFLUOROMETHANE (HCFC-22)

Inhalation 4-hour LC50: 220,000 ppm in rats

The compound is a skin irritant and a slight eye irritant, but is
not a skin sensitizer in animals.

Effects from single high exposures include central nervous system
depression, anesthesia, rapid breathing, lung congestion and
microscopic liver changes. Cardiac sensitization occurred in dogs
at 50,000 ppm or greater from the action of exogenous epinephrine.

No toxic effects or abnormal histopathological observations
occurred in rats repeatedly exposed to concentrations ranging from
10,000 to 50,000 ppm (v/v). Long-term exposures to 50,000 ppm
(v/v) of vapors produced organ weight increases and a decrease in
body weight gain, but no increased mortality or adverse
hematological effects.

In chronic inhalation studies, HCFC-22, at a concentration of
50,000 ppm (v/v), produced a small, but statistically significant
increase of late-occurring tumors involving salivary glands in
male rats, but not female rats or male or female mice. In the
same studies, no increased incidence of tumors was seen in either
species at concentrations of 10,000 ppm or 1000 ppm (v/v).

Long-term administration in corn oil produced no effects on body
weight or mortality.
3030FR DuPont Page 8
Material Safety Data Sheet

(TOXICOLOGICAL INFORMATION - Continued)

HCFC-22 was mutagenic in some strains of bacteria in cell
cultures, but not in mammalian cell cultures or animals. It did
not cause heritable genetic damage in mammals.

A slight, but significant increase in developmental toxicity was
observed at high concentrations (50,000 ppm) of HCFC-22, a
concentration which also produced toxic effects in the adult
animal. Based on these findings, and other negative developmental
studies, HCFC-22 is not considered a unique hazard to the
conceptus. Studies of the effects of HCFC-22 on male reproductive
performance have been negative. 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 at concentrations up to 50,000 ppm.

DIFLUOROETHANE (HFC-152a)

Inhalation 4-hour ALC : 383,000 ppm in rats
Oral ALD : >1,500 mg/kg in rats

Effects of a single exposure to high levels include labored
breathing, lung irritation, lethargy, incoordination and loss of
consciousness. Cardiac sensitization occurred in dogs exposed to
a concentration of 150,000 ppm in air and given an intravenous
epinephrine challenge. Effects of repeated exposure include
increased urinary fluoride, reduced kidney weight, and reversible
kidney changes.

Effects of a single high oral dose include weight loss and
lethargy.

Tests in animals demonstrate no carcinogenic activity or
developmental effects. Tests in animals for reproductive effects
have not been performed. This compound does not produce genetic
damage in bacterial cell cultures but has not been tested in
animals.

CHLOROTETRAFLUOROETHANE (HCFC-124)

Inhalation 4-hour ALC : >230,000 ppm in rats

The effects in animals from single inhalation exposures by
inhalation include central nervous system effects, anesthesia and
decreased blood pressure. Cardiac sensitization occurred in dogs
exposed to a concentration of 2.5% in air and given an intravenous
epinephrine challenge. Repeated exposures produced increased
liver weights, anesthetic effects, irregular respiration, poor
coordination and nonspecific effects such as decreased body weight
gain. However, no irreversible effects were seen as evidenced by
histopathologic evaluation.
3030FR DuPont Page 9
Material Safety Data Sheet

(TOXICOLOGICAL INFORMATION - Continued)

Tests in animals suggest no developmental toxicity potential.
HCFC-124 was not mutagenic in bacterial and mammalian cell
cultures or whole animal studies.

----------------------------------------------------------------------
ECOLOGICAL INFORMATION
----------------------------------------------------------------------
Ecotoxicological Information

Aquatic Toxicity:

HCFC-22
48 hour EC50 - Daphnia magna: 433 mg/L

----------------------------------------------------------------------
DISPOSAL CONSIDERATIONS
----------------------------------------------------------------------
Waste Disposal

Treatment, storage, transportation, and disposal must be in
accordance with applicable Federal, State/Provincial, and Local
regulations. Recover by distillation or remove to a permitted
waste disposal facility.

----------------------------------------------------------------------
TRANSPORTATION INFORMATION
----------------------------------------------------------------------
Shipping Information

DOT/IMO/IATA
Proper Shipping Name : Liquefied Gas, N.O.S.
(Chlorodifluoromethane and
Chlorotetrafluoroethane)
Hazard Class : 2.2
UN No. : 3163
Label(s) : Nonflammable Gas

Shipping Containers

Tank Cars.
Cylinders.
Ton Tanks.

----------------------------------------------------------------------
REGULATORY INFORMATION
----------------------------------------------------------------------
U.S. Federal Regulations

TSCA Inventory Status : Reported/Included.

TITLE III HAZARD CLASSIFICATIONS SECTIONS 311, 312

Acute : Yes
Chronic : No
3030FR DuPont Page 10
Material Safety Data Sheet

(REGULATORY INFORMATION - Continued)

Fire : No
Reactivity : No
Pressure : Yes

HAZARDOUS CHEMICAL LISTS

SARA Extremely Hazardous Substance: No
CERCLA Hazardous Substance : No
SARA Toxic Chemical - See Components Section

----------------------------------------------------------------------
OTHER INFORMATION
----------------------------------------------------------------------
NFPA, NPCA-HMIS

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

----------------------------------------------------------------------

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.

Responsible for MSDS : MSDS Coordinator
> : DuPont Chemical Solutions Enterprise
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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