# 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
Exposure Limits | 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
See also: INTRODUCTION