NIOSH Pocket Guide to Chemical Hazards

1,1,2-Trichloro-1,2,2-trifluoroethane CAS 76-13-1
CCl2FCClF2 RTECS KJ4000000
Synonyms & Trade Names
Chlorofluorocarbon-113, CFC-113, Freon® 113, Genetron® 113, Halocarbon 113, Refrigerant 113, TTE
DOT ID & Guide
NIOSH REL: TWA 1000 ppm (7600 mg/m3) ST 1250 ppm (9500 mg/m3)
OSHA PEL†: TWA 1000 ppm (7600 mg/m3)
IDLH 2000 ppm Conversion 1 ppm = 7.67 mg/m3
Physical Description
Colorless to water-white liquid with an odor like carbon tetrachloride at high concentrations. [Note: A gas above 118°F.]
MW: 187.4
BP: 118°F
FRZ: -31°F
Sol(77°F): 0.02%
VP: 285 mmHg
IP: 11.99 eV

Sp.Gr(77°F): 1.56
Fl.P: ?
UEL: ?
LEL: ?

Noncombustible Liquid at ordinary temperatures, but the gas will ignite and burn weakly at 1256°F.
Incompatibilities & Reactivities
Chemically-active metals such as calcium, powdered aluminum, zinc, magnesium & beryllium [Note: Decomposes if in contact with alloys containing >2% magnesium.]
Measurement Methods
NIOSH 1020; OSHA 113
Personal Protection & Sanitation
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation

First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
Respirator Recommendations NIOSH/OSHA
Up to 2000 ppm: (APF = 10) Any supplied-air respirator/(APF = 50) Any self-contained breathing apparatus with a full facepiece
Emergency or planned entry into unknown concentrations or IDLH conditions: (APF = 10,000) Any self-contained breathing apparatus that has a full facepiece and is operated in a pressure- demand or other positive-pressure mode/(APF = 10,000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode in combination with an auxiliary self-contained positive-pressure breathing apparatus
Escape: (APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister/Any appropriate escape-type, self-contained breathing apparatus
Exposure Routes inhalation, ingestion, skin and/or eye contact
Symptoms Irritation skin, throat, drowsiness, dermatitis; central nervous system depression; in animals: cardiac arrhythmias, narcosis
Target Organs Skin, heart, central nervous system, cardiovascular system