# NIOSH Pocket Guide to Chemical Hazards
1,2,3-Trichloropropane | CAS 96-18-4
CH2ClCHClCH2Cl | RTECS TZ9275000
Synonyms & Trade Names Allyl trichloride, Glycerol trichlorohydrin, Glyceryl trichlorohydrin, Trichlorohydrin | DOT ID & Guide
Exposure Limits | NIOSH REL: Ca TWA 10 ppm (60 mg/m3) [skin] See Appendix A
OSHA PEL†: TWA 50 ppm (300 mg/m3)
IDLH Ca [100 ppm] | Conversion 1 ppm = 6.03 mg/m3
Physical Description Colorless liquid with a chloroform-like odor.
MW: 147.4 | BP: 314°F | FRZ: 6°F | Sol: 0.1%
VP: 3 mmHg | IP: ? |  | Sp.Gr: 1.39
Fl.P: 160°F | UEL(302°F): 12.6% | LEL(248°F): 3.2% |
Class IIIA Combustible Liquid: Fl.P. at or above 140°F and below 200°F.
Incompatibilities & Reactivities Chemically-active metals, strong caustics & oxidizers
Measurement Methods NIOSH 1003; OSHA 7
Personal Protection & Sanitation Skin: Prevent skin contact Eyes: Prevent eye contact Wash skin: When contaminated Remove: When wet or contaminated Change: No recommendation Provide: Eyewash, Quick drench | First Aid (See procedures) Eye: Irrigate immediately Skin: Soap wash Breathing: Respiratory support Swallow: Medical attention immediately
Respirator Recommendations NIOSH At concentrations above the NIOSH REL, or where there is no REL, at any detectable concentration: (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, skin absorption, ingestion, skin and/or eye contact
Symptoms Irritation eyes, nose, throat; central nervous system depression; in animals: liver, kidney injury; [potential occupational carcinogen]
Target Organs Eyes, skin, respiratory system, central nervous system, liver, kidneys Cancer Site [in animals: forestomach, liver & mammary gland cancer]
See also: INTRODUCTION