Methyl chloroform
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CAS
71-55-6
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CH3CCl3
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RTECS
KJ2975000
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Synonyms & Trade Names
Chlorothene; 1,1,1-Trichloroethane; 1,1,1-Trichloroethane (stabilized)
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DOT ID & Guide
2831 / 160
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Exposure
Limits
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NIOSH REL: C 350 ppm (1900 mg/m3) [15-minute] See Appendix C (Chloroethanes)
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OSHA PEL†: TWA 350 ppm (1900 mg/m3)
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IDLH
700 ppm
See: 71556
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Conversion
1 ppm = 5.46 mg/m3
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Physical Description
Colorless liquid with a mild, chloroform-like odor.
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MW: 133.4
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BP: 165°F
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FRZ: -23°F
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Sol: 0.4%
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VP: 100 mmHg
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IP: 11.00 eV
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Sp.Gr: 1.34
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Fl.P: ?
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UEL: 12.5%
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LEL: 7.5%
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Combustible Liquid, but burns with difficulty.
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Incompatibilities & Reactivities
Strong caustics; strong oxidizers; chemically-active metals such as zinc, aluminum, magnesium powders, sodium & potassium; water [Note: Reacts slowly with water to form hydrochloric acid.]
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Measurement Methods
NIOSH 1003
See: NMAM or OSHA Methods |
Personal Protection & Sanitation (See protection)
Skin: Prevent skin contact
Eyes: Prevent eye contact
Wash skin: When contaminated
Remove: When wet or contaminated
Change: No recommendation
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Soap wash promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
NIOSH/OSHA
Up to 700 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
Important additional information about respirator selection
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Exposure Routes
inhalation, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin; headache, lassitude (weakness, exhaustion), central nervous system depression, poor equilibrium; dermatitis; cardiac arrhythmias; liver damage
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Target Organs
Eyes, skin, central nervous system, cardiovascular system, liver
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See also: INTRODUCTION
See ICSC CARD: 0079 See MEDICAL TESTS: 0141
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