Material Safety Data Sheet
1. Product and Company Identification
: Dichlorodifluoromethane
Product name
Chemical formula : CCl2F2
Synonyms : Chlorofluorocarbon 12; Dichlorodifluoromethane(R-12); Difluorodichloromethane;
Dichlorodifluoromethane (CCl2F2); Electro-CF 12; CF 12; FC 12; CFC 12;
Freon 12; Fluorocarbon-12; Halon; F 12; Halon 122; R 12; R 12 (Refrigerant);
UN 1028
Company : Specialty Gases of America, Inc
6055 Brent Dr.
Toledo, OH 43611
Telephone : 419-729-7732
Emergency : 800-424-9300
2. Composition/Information on Ingredients
Components CAS Number % Volume
Dichlorodifluoromethane 75-71-8 100%
3. Hazards Identification
Emergency Overview
Containers may rupture or explode if exposed to heat.
May cause difficulty breathing, central nervous system depression.
Potential Health Effects
Inhalation : Nausea, vomiting, difficulty breathing, irregular heartbeat, headache,
drowsiness, fatigue, dizziness, disorientation, mood swing, tingling sensation,
loss of coordination, suffocation, convulsions, unconsciousness, coma.
Eye contact : Frostbite, eye damage, blurred vision.
Skin contact : Blisters, frostbite.
Ingestion : Ingestion of a gas is unlikely.
Chronic Health : Not available.
Hazard
4. First Aid Measures
Eye contact : Contact with liquid: Flush eyes with plenty of water for at least 15 minutes. Then
get immediate medical attention.
Skin contact : If frostbite or freezing occur, immediately flush with plenty of lukewarm water
(105-115癋; 41-46癈). DO NOT USE HOT WATER. If warm water is not
available, gently wrap affected parts in blanket. Get immediate medical
attention.
Ingestion : If a large amount is swallowed, get medical attention.
Inhalation : If adverse effects occur, remove to uncontaminated area. Give artificial
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respiration if not breathing. If breathing is difficult, oxygen should be
administered by qualified personnel. Get immediate medical attention.
Note to physicians : For inhalation, consider oxygen.
5. Fire-Fighting Measures
Suitable : Regular dry chemical, carbon dioxide.
extinguishing media Large fires: Use regular foam or flood with fine water spray.
Specific hazards : Negligible fire hazard. Containers may rupture or explode if exposed to heat.
Fire fighting : Move container from fire area if it can be done without risk. Cool containers with
water spray until well after the fire is out. Stay away from the ends of tanks.
Withdraw immediately in case of rising sound from venting safety device or any
discoloration of tanks due to fire. For tank, rail car or tank truck, evacuation
radius: 800 meters (1/2 mile). Use extinguishing agents appropriate for
surrounding fire. Cool containers with water spray until well after the fire is out.
Apply water form a protected location or from a safe distance. Do not get water
directly on material. Reduce vapors with water spray. Avoid inhalation of
material or combustion by-products. Stay upwind and keep out of low areas.
Consider downwind evacuation if material is leaking.
6. Accidental Release Measures
Occupational : Stop leak if possible without personal risk. Keep unnecessary people away,
spill/release isolate hazard area and deny entry. Stay upwind and keep out of low areas.
Notify Local Emergency Planning Committee and State Emergency Response
Commission for release greater than or equal to RQ (U.S. SARA Section 304). If
release occurs in the U.S. and is reportable under CERCLA Section 103, notify
the National Response Center at (800)424-8802 (USA) or (202)426-2675
(USA).
Additional advice : None.
7. Handling and Storage
Handling
Secure cylinder when using to protect from falling. Use suitable hand truck to move cylinders.
Storage
Subject to storage regulations: U.S. OSHA 29 CFR 1910.101. Store in accordance with all current
regulations and standards. Keep separated from incompatible substances.
8. Exposure Controls / Personal Protection
Exposure limits
ACGIH : 1000 ppm TWA
OSHA (final) : 1000 ppm TWA; 4950 mg/m3 TWA
OSHA (vacated) : 1000 ppm TWA; 4950 mg/m3 TWA
NIOSH : 1000 ppm TWA; 4950 mg/m3 TWA
IDLH
15,000 ppm
Engineering measures/Ventilation
Ensure compliance with applicable exposure limits. Provide local exhaust ventilation system.
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Personal protective equipment
Respiratory : The following respirators and maximum use concentrations are drawn from
protection NIOSH and/or OSHA.
10000 ppm ?Any supplied-air respirator.
15000 ppm ?Any supplied-air respirator operated in a continuous-flow mode.
Any self-contained breathing apparatus with a full facepiece.
Any supplied-air respirator with a full facepiece.
Emergency or planned entry into unknown concentrations or IDLH conditions ?br>
Any self-contained breathing apparatus that has a full facepiece and is operated
in a pressure-demand or other positive-pressure mode.
Any supplied-air respirator with a full facepiece that is operated in a pressure-
demand or other positive-pressure mode in combination with an auxiliary self-
contained breathing apparatus operated in pressure-demand or other positive-
pressure mode.
Escape ?Any air-purifying full-facepiece respirator (gas mask) with a chin-style,
front-mounted or back-mounted organic vapor canister.
Any appropriate escape-type, self-contained breathing apparatus.
Hand protection : Wear insulated gloves.
Eye protection : For the gas: Eye protection not required, but recommended. For the liquid: Wear
splash resistant safety goggles. Contact lenses should not be worn. Provide an
emergency eye wash fountain and quick drench shower in the immediate work
area.
Skin and body : For the gas: Protective clothing is not required. For the liquid: Wear appropriate
protection protective, cold insulating clothing.
9. Physical and Chemical Properties
Form : Gas.
Color : Colorless.
Odor : Faint odor, ether odor.
Molecular weight : 120.91
Vapor pressure : 4393 mmHg @ 21.1癈
Vapor density : 4.2 (air = 1)
Boiling point : -29.8癈 @ 760 mmHg
Melting point : -158癈
Water solubility : 0.028% @ 25癈
Evaporation rate : 380 (butyl acetate = 1)
Solvent solubility : Soluble: alcohol, ether, acetic acid, ketones, esters, hydrocarbons, oils,
chlorinated solvents, organic acids.
Insoluble: glycols, glycerol, phenols.
10. Stability and Reactivity
Stability : Stable under normal conditions.
Conditions to avoid : Protect from physical damage and heat. Containers may rupture or explode if
exposed to heat.
Materials to avoid : Metals, combustible materials, aluminum, acids.
Hazardous : Thermal decomposition products: phosgene, halogenated anilines, hydrochloric
decomposition acids, carbonyl fluoride, chlorine, hydrogen fluoride, fluorocarbons, hydrogen
products chloride.
11. Toxicological Information
The components of this material have been reviewed in various sources and the following endpoints are
published:
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DICHLORODIFLUOROMETHANE : Inhalation LC50 Mouse: 3348 g/m3/3H
(75-71-8)
Acute Toxicity Level
DICHLORODIFLUOROMETHANE : Non toxic: inhalation
(75-71-8)
Component Carcinogenicity
ACGIH : A4 ?Not Classifiable as a Human Carcinogen.
Target Organs
DICHLORODIFLUOROMETHANE : Central nervous system.
(75-71-8)
Medical Conditions Aggravated by Exposure
Heart or cardiovascular disorders.
Additional Data
Stimulants such as epinephrine may induce ventricular fibrillation.
12. Ecological Information
No LOLI ecotoxicity data are available for this product's components.
13. Disposal Considerations
Waste from residues : Dispose in accordance with all applicable regulations. Subject to disposal
/ unused products regulations: U.S. EPA 40 CFR 262. Hazardous Waste Number(s): U075.
Contaminated : Return cylinder to supplier.
packaging
Component Waste : DICHLORODIFLUOROMETHANE (75-71-8)
Numbers RCRA: waste_number U075
14. Transport Information
DOT (US only)
Proper shipping : Dichlorodifluoromethane
name
Class : 2.2
UN/ID No. : UN1028
Labeling : Non-Flammable Gas
15. Regulatory Information
U.S. Federal Regulations
This material contains one or more of the following chemicals required under SARA Section 302/304 (40
CFR 355 Appendix A), SARA Section 313 (40 CFR 372.65), CERCLA (40 CFR 302.4), TSCA 12(b), and/or
require an OSHA process safety plan.
DICHLORODIFLUOROMETHANE : SARA 313: 1.0% de minimis concentration
(75-71-8) CERCLA: 5000 lb final RQ; 2270 kg final RQ
SARA 311/312
Acute: Yes
Chronic: No
Fire: No
Reactive: No
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Pressure: Yes
U.S. State Regulations
The following components appear on one or more of the following state hazardous substances lists:
Component CAS CA MA MN NJ PA RI
DICHLORODIFLUOROMETHANE 75-71-8 Yes Yes Yes Yes Yes Yes
Not regulated under California Proposition 65
16. Other Information
Prepared by : Specialty Gases of America, Inc.
For additional information, please visit our website at www.americangasgroup.com.
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