Commercial Food Equipment Service Association P_0000024359 D_0000028717
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"FREON" 22
2008FR Revised 5-OCT-1996
CHEMICAL PRODUCT/COMPANY IDENTIFICATION
Material Identification
Corporate MSDS Number : DU000025
Formula : CHClF2
Molecular Weight : 86.47
CAS Name : "FREON" 22
Tradenames and Synonyms
Freon 22
CHLORODIFLUOROMETHANE
HCFC-22
CC0335
Dymel 22
Company Identification
MANUFACTURER/DISTRIBUTOR
DuPont Fluoroproducts
1007 Market Street
Wilmington, DE 19898
PHONE NUMBERS
Product Information : 1-800-441-7515 (outside the U.S.
Commercial Food Equipment Service Association P_0000024359 D_0000028717
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)
COMPOSITION/INFORMATION ON INGREDIENTS
Components
Material CAS Number %
*"FREON" 22 METHANE, CHLORODIFLUORO- 75-45-6 100
* 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.
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 with the liquid may include frostbite.
Prolonged overexposure may cause defatting or dryness of the
skin. Eye contact with liquid may include eye irritation
with discomfort, tearing, or blurring of vision.
Inhalation may include temporary nervous system depression
with anesthetic effects such as dizziness, headache,
confusion, incoordination, and loss of consciousness.
Higher exposures may lead to temporary alteration of the
heart's electrical activity with irregular pulse,
palpitations, or inadequate circulation. Fatality may occur
from gross overexposure.
Individuals with preexisting diseases of the central nervous
or cardiovascular system may have increased susceptibility
to the toxicity of excessive exposures.
Commercial Food Equipment Service Association P_0000024359 D_0000028717
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 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, 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
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 : Will not burn
Autodecomposition : 632 C (1170 F)
Other burning materials may cause "FREON" 22 to burn weakly.
Commercial Food Equipment Service Association P_0000024359 D_0000028717
Chlorodifluoromethane is not flammable at ambient
temperatures and atmospheric pressure. However,
chlorodifluoromethane has been shown in tests to be
combustible at pressures as low as 60 psig at ambient
temperature when mixed with air at concentrations of 65
volume % air. Experimental data have also been reported
which indicate combustibility of "FREON" 22 in the presence
of certain concentrations of chlorine.
Fire and Explosion Hazards:
Cylinders may rupture under fire conditions. Decomposition
may occur.
Extinguishing Media
As appropriate for combustibles in area. Extinguishant
for other burning material in area is sufficient to stop
burning.
Fire Fighting Instructions
Use water spray or fog to cool containers. Self-contained
breathing apparatus (SCBA) is required if cylinders rupture
or contents are released under fire conditions. Water
runoff should be contained and neutralized prior to release.
ACCIDENTAL RELEASE MEASURES
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
Ventilate area, especially low or enclosed places where
heavy vapors might collect. Remove open flames. Use
self-contained breathing apparatus (SCBA) for large spills
or releases.
HANDLING AND STORAGE
Handling (Personnel)
Use with sufficient ventilation to keep employee exposure
Commercial Food Equipment Service Association P_0000024359 D_0000028717
below recommended limits. "FREON" 22 should not be mixed
with air for leak testing. In general, it should not be
used or allowed to be present with high concentrations of
air above atmospheric pressure. Contact with chlorine or
other strong oxidizing agents should also be avoided.
Storage
Clean, dry area. Do not heat above 52 C (125 F).
EXPOSURE CONTROLS/PERSONAL PROTECTION
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.
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
Exposure Limits
"FREON" 22
PEL (OSHA) : None Established
TLV (ACGIH) : 1,000 ppm, 3,540 mg/m3, 8 Hr. TWA, A4
AEL * (DuPont) : None Established
* 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.
PHYSICAL AND CHEMICAL PROPERTIES
Physical Data
Boiling Point : -40.8 C (-41.4 F)
Vapor Pressure : 151 psig @ 25 C (77 F)
Vapor Density : 3.03 (Air=1.0) @ 25 C (77 F)
% Volatiles : 100 WT%
Commercial Food Equipment Service Association P_0000024359 D_0000028717
Evaporation Rate : >1 (CCl4=1.0)
Solubility in Water : 0.3 WT% @ 25 C (77 F)
pH : Neutral
Odor : Slight ethereal
Form : Liquified Gas.
Color : Clear, Colorless.
Liquid Density : 1.194 g/cm3 @ 25 C (77 F)
STABILITY AND REACTIVITY
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. "FREON" 22 can be
decomposed by high temperatures (open flames, glowing metal
surfaces, etc.) forming hydrochloric and hydrofluoric acids,
and possibly carbonyl halides. These materials are toxic
and irritating. Contact should be avoided.
Polymerization
Polymerization will not occur.
TOXICOLOGICAL INFORMATION
Animal Data
INHALATION:
4 hour, LC50, rat: 220,000 ppm.
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
Commercial Food Equipment Service Association P_0000024359 D_0000028717
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, "FREON" 22, at a concentration o
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 1,000 ppm (v/v).
Long-term administration in corn oil produced no effects on
body weight or mortality.
"FREON" 22 was mutagenic in some strains of bacteria in
bacterial cell cultures, but not 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
"FREON" 22, a concentration which also produced toxic
effectS in the adult animal. Based on these findings, and
other negative developmental studies, "FREON" 22 is not
considered a unique hazard to the conceptus. Studies of
the effects of "FREON" 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.
ECOLOGICAL INFORMATION
Ecotoxicological Information
Aquatic Toxicity:
"FREON" 22
48 hour EC50 - Daphnia magna: 433 mg/L
DISPOSAL CONSIDERATIONS
Commercial Food Equipment Service Association P_0000024359 D_0000028717
Waste Disposal
Comply with Federal, State, and local regulations. Reclaim
by distillation or remove to a permitted waste disposal
facility.
TRANSPORTATION INFORMATION
Shipping Information
DOT/IMO
Proper Shipping Name : CHLORODIFLUOROMETHANE
Hazard Class : 2.2
UN No. : 1018
DOT/IMO Label : NONFLAMMABLE GAS
Shipping Containers
Tank Cars.
Tank Trucks.
Cylinders.
REGULATORY INFORMATION
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 - See Components Section
Commercial Food Equipment Service Association P_0000024359 D_0000028717
OTHER INFORMATION
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.
End of MSDS
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