Chloroform |
Synonyms & Trade Names Methane trichloride, Trichloromethane |
CAS No. 67-66-3 |
RTECS No. FS9100000 |
DOT ID & Guide 1888 151 |
FormulaCHCl3 |
Conversion 1 ppm = 4.88 mg/m3 |
IDLH Ca [500 ppm]
See: 67663 |
Exposure Limits NIOSH REL: Ca ST 2 ppm (9.78 mg/m3) [60-minute] See Appendix A
OSHA PEL†: C 50 ppm (240 mg/m3) |
Measurement Methods
NIOSH 1003
See: NMAM or OSHA Methods |
Physical Description Colorless liquid with a pleasant odor. |
MW: 119.4 |
BP: 143°F |
FRZ: -82°F |
Sol(77°F): 0.5% |
VP: 160 mmHg |
IP: 11.42 eV |
Sp.Gr: 1.48 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Liquid |
Incompatibilities & Reactivities Strong caustics; chemically-active metals such as aluminum or magnesium powder, sodium & potassium; strong oxidizers [Note: When heated to decomposition, forms phosgene gas.] |
Exposure Routes inhalation, skin absorption, ingestion, skin and/or eye contact |
Symptoms irritation eyes, skin; dizziness, mental dullness, nausea, confusion; headache, lassitude (weakness, exhaustion); anesthesia; enlarged liver; [potential occupational carcinogen] |
Target Organs Liver, kidneys, heart, eyes, skin, central nervous system |
Cancer Site[in animals: liver & kidney cancer] |
Personal Protection/Sanitation (See protection codes)
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 promptly
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
Important additional information about respirator selection |
| See also: INTRODUCTION See ICSC CARD: 0027 See MEDICAL TESTS: 0047 |
