R-22
1.CHEMICAL PRODUCT AND COMPANY IDENTIFICATION
PRODUCT NAME: R-22
DISTRIBUTOR: National Refrigerants, Inc.
661 Kenyon Avenue
Bridgeton, New Jersey  08302
FOR MORE INFORMATION CALL:IN CASE OF EMERGENCY CALL:
(Monday-Friday, 8:00am-5:00pm)      CHEMTREC:  1-800-424-9300
1-800-262-0012
2.COMPOSITION / INFORMATION ON INGREDIENTS
INGREDIENT NAME CAS NUMBER WEIGHT % Chlorodifluoromethane        75-45-6        100
Trace impurities and additional material names not listed above may also appear in Section 15 toward the end of the MSDS.  These materials may be listed for local “Right-To-Know” compliance and for other reasons.
3.HAZARDS IDENTIFICATION
EMERGENCY OVERVIEW:  Colorless, volatile liquid with ethereal and faint sweetish odor.  Non-flammable material.
Overexposure may cause dizziness and loss of concentration.  At higher levels, CNS depression and c
ardiac arrhythmia may result from exposure.  Vapors displace air and can cause asphyxiation in confined spaces.  At higher temperatures, (>250°C), decomposition products may include Hydrochloric Acid (HCI), Hydrofluoric Acid (HF) and carbonyl halides.
POTENTIAL HEALTH HAZARDS
SKIN:Irritation would result from a defatting action on tissue.  Liquid contact could cause frostbite.
EYES: Liquid contact can cause severe irritation and frostbite.  Mist may irritate.
INHALATION: R-22 is low in acute toxicity in animals.  When oxygen levels in air are reduced to 12-14% by
displacement, symptoms of asphyxiation, loss of coordination, increased pulse rate and deeper respirationreactive carbonyl species
will occur.  At high levels, cardiac arrhythmia may occur.
INGESTION:Ingestion is unlikely because of the low boiling point of the material.  Should it occur, discomfort in the  gastrointestinal tract from rapid evaporation of the material and consequent evolution of gas would result.
and
skin exposure would be expected.
inhalation
of
effects
Some
DELAYED EFFECTS:  None Known
R-22 Ingredients found on one of the OSHA designated carcinogen lists are listed below.
INGREDIENT NAME NTP STATUS IARC STATUS OSHA LIST
No ingredients listed in this section
4.FIRST AID MEASURES
SKIN:Promptly flush skin with water until all chemical is removed.  If there is evidence of frostbite, bathe (do not rub) with lukewarm (not hot) water.  If water is not available, cover with a clean, soft cloth or similar covering.  Get medical attention if symptoms persist.
EYES:Immediately flush eyes with large amounts of water for at least 15 minutes (in case of frostbite, water should be lukewarm, not hot) lifting eyelids occasionally to facilitate irrigation.  Get medical attention if symptoms persist.
INHALATION: Immediately remove  to fresh air.  If breathing has stopped, give artificial respiration.  Use oxygen as  required, provided a qualified operator is available.  Get medical attention immediately.  DO NOT give epinephrine  (adrenaline).
INGESTION:  Ingestion is unlikely because of the physical properties and is not expected to be hazardous.  DO NOT induce vomiting unless instructed to do so by a physician.
ADVICE TO PHYSICIAN:  Because of the possible disturbances of cardiac rhythm, catecholamine drugs, such as
epinephrine,  should be used with special caution and only in situations of emergency life support.
Treatment of overexposure should be directed at the control of symptoms and the clinical
conditions.
5.FIRE FIGHTING MEASURES
FLAMMABLE PROPERTIES
DOT
regulations
per
applicable
FLASH POINT:    Gas,
not
applicable
FLASH POINT METHOD:Not
AUTOIGNITION TEMPERATURE: Unknown
UPPER FLAME LIMIT (volume % in air): None*
LOWER FLAME LIMIT (volume % in air): None*
34
ignition
match
with
*Based
Standard
on
ASHRAE
applicable
FLAME PROPAGATION RATE (solids): Not
applicable
OSHA FLAMMABILITY CLASS:  Not
EXTINGUISHING MEDIA:
Use any standard agent – choose the one most appropriate for type of surrounding fire (material itself is not flammable)
UNUSUAL FIRE AND EXPLOSION HAZARDS:
R-22 is not flammable at ambient temperatures and atmospheric pressure.  However, this material will become
combustible when mixed with air under pressure and exposed to strong ignition sources.
Contact with certain reactive metals may result in formation of explosive or exothermic reactions under specific conditions
(e.g. very high temperatures and/or appropriate pressures).
R-22
SPECIAL FIRE FIGHTING PRECAUTIONS/INSTRUCTIONS:
Firefighters should wear self-contained, NIOSH-approved breathing apparatus for protection against possible toxic
decomposition products.  Proper eye and skin protection should be provided.  Use water spray to keep fire-exposed cool.
containers
6.ACCIDENTAL RELEASE MEASURES
IN CASE OF SPILL OR OTHER RELEASE:(Always wear recommended personal protective equipmen
t.) Evacuate unprotected personnel.  Protected personnel should remove ignition sources and shut off leak, if without risk, and provide ventilation.  Unprotected personnel should not return until air has been tested and determined safe,  including low-areas.
lying
Spills and releases may have to be reported to Federal and/or local authorities.  See Section 15 regarding reporting requirements.
7.HANDLING AND STORAGE
personal protective equipment.)
recommended
wear
NORMAL HANDLING:    (Always
Avoid breathing vapors and liquid contact with eyes, skin or clothing.  Do not puncture or drop cylinders, expose them to
open flame or excessive heat.  Use authorized cylinders only.  Follow standard safety precautions for handling and use of
compressed gas cylinders.
R-22 should not be mixed with air above atmospheric pressure for leak testing or any other purpose.  See Section 5:  Unusual Fire and Explosion Hazards
STORAGE RECOMMENDATIONS:
Store in a cool, well-ventilated area of low fire risk and out of direct sunlight.  Protect cylinder and its fittings from physical damage.  Storage in subsurface locations should be avoided.  Close valve tightly after use and when empty.
8.EXPOSURE CONTROLS / PERSONAL PROTECTION
ENGINEERING CONTROLS:
Provide local ventilation at filling zones and areas where leakage is probable.  Mechanical (general) ventilation may be
adequate for other operating and storage areas.
PERSONAL PROTECTIVE EQUIPMENT
SKIN PROTECTION:
Skin contact with refrigerant may cause frostbite.  General work clothing and gloves (leather) should provide
adequate protection.  If prolonged contact with liquid or gas is anticipated, insulated gloves constructed of PVA,
neoprene or butyl rubber should be used.  Any contaminated clothing should be promptly removed and washed reuse.
before
EYE PROTECTION:
For normal conditions, wear safety glasses.  Where there is reasonable probability of liquid contact, wear chemical goggles.
safety
R-22 RESPIRATORY PROTECTION:
None generally required for adequately ventilated work situations.  For accidental release or non-ventilated
into confined space, where the concentration may be above the PEL of 1,000 ppm, use a self-  situations,
release
or
contained, NIOSH approved breathing apparatus or supplied air respirator.  For escape:  use the former or a NIOSH
approved gas mask with organic vapor canister.
ADDITIONAL RECOMMENDATIONS:
Where contact with liquid is likely, such as in a spill or leak, impervious boots and clothing should be worn.  High
dose-level warning signs are recommended for areas of principle exposure.  Provide eyewash stations and  quick-
drench shower facilities at convenient locations.  For tank cleaning operations, see OSHA regulations, 29 CFR
1910.132 and 29 CFR 1910.133.
EXPOSURE GUIDELINES
INGREDIENT NAME ACGIH TLV OSHA PEL OTHER LIMIT
Chlorodifluoromethane 1000 ppm TWA (8hr) 1000 ppm TWA (8hr)      None
OTHER EXPOSURE LIMITS FOR POTENTIAL DECOMPOSITION PRODUCTS:
Hydrogen Fluoride:  ACGIH TLV = 3ppm ceiling
9.PHYSICAL AND CHEMICAL PROPERTIES
APPEARANCE:Clear, colorless liquid and vapor
PHYSICAL STATE:Gas at ambient temperatures
MOLECULAR WEIGHT:  86.45
CHEMICAL FORMULA:  CHC1F2
odor
ethereal
ODOR:    Faint
SPECIFIC GRAVITY (water = 1.0):  1.21 @ 21.1°C (70°F)
SOLUBILITY IN WATER (weight %):0.3 wt% @ 25°C and 1 atmosphere
pH: Neutral
BOILING POINT:-40.8°C (-41.40°F)
FREEZING POINT:  -160°C (-256°F)
VAPOR PRESSURE:136.1 psia @ 70°F
130°F
@
psia
311.4
VAPOR DENSITY (air = 1.0):  3.0
EVAPORATION RATE:  >1 COMPARED TO:  CC14  =  1
% VOLATILES:  100
applicable
FLASH POINT:  Not
(Flash point method and additional flammability data are found in Section 5.)
R-22 10.STABILITY AND REACTIVITY
NORMALLY STABLE?  (CONDITIONS TO AVOID):
The product is stable.
Do not mix with oxygen or air above atmospheric pressure.  Any source of high temperatures, such as lighted cigarettes,
flames, hot spots or welding may yield toxic and/or corrosive  decomposition products.
INCOMPATIBILITIES:
(Under specific conditions: e.g. very high temperatures and/or appropriate pressures) – Freshly abraded aluminum surfaces (may cause strong exothermic reaction). Chemically reactive metals:  potassium, calcium, powdered aluminum, magnesium, and zinc.
HAZARDOUS DECOMPOSITION PRODUCTS:
Halogens, halogen acids and possibly carbonyl halides.
HAZARDOUS POLYMERIZATION:
Will not occur.
11.TOXICOLOGICAL INFORMATION
IMMEDIATE (ACUTE) EFFECTS:
LC50 : 4 hr. (rat) - > 300,000 ppm  /  Cardiac Sensitization threshold (dog) - 50,000 ppm
DELAYED (SUBCHRONIC AND CHRONIC) EFFECTS:
Subchronic inhalation (rat) NOEL – 10,000 ppm
Not mutagenic in in-vitro or in-vivo tests
Not teratogenic
OTHER DATA:
Lifetime exposure of male rats was associated with a small increase in salivary gland fibrosarcomas.
12.ECOLOGICAL INFORMATION
Degradability (BOD):      R-22 is a gas at room temperature; therefore, it is unlikely to remain in water.
Octanol Water Partition Coefficient:  Unknown
13.DISPOSAL CONSIDERATIONS
RCRA
Is the unused product a RCRA hazardous waste if discarded?Not a hazardous waste
applicable
If yes, the RCRA ID number is:    Not

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