Bromoform
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CAS
75-25-2
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CHBr3
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RTECS
PB5600000
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Synonyms & Trade Names
Methyl tribromide, Tribromomethane
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DOT ID & Guide
2515 / 159
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Exposure
Limits
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NIOSH REL: TWA 0.5 ppm (5 mg/m3) [skin]
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OSHA PEL: TWA 0.5 ppm (5 mg/m3) [skin]
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IDLH
850 ppm
See: 75252
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Conversion
1 ppm = 10.34 mg/m3
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Physical Description
Colorless to yellow liquid with a chloroform-like odor. [Note: A solid below 47°F.]
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MW: 252.8
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BP: 301°F
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FRZ: 47°F
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Sol: 0.1%
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VP: 5 mmHg
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IP: 10.48 eV
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Sp.Gr: 2.89
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Fl.P: NA
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UEL: NA
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LEL: NA
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Noncombustible Liquid
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Incompatibilities & Reactivities
Lithium, sodium, potassium, calcium, aluminum, zinc, magnesium, strong caustics, acetone [Note: Gradually decomposes, acquiring yellow color; air & light accelerate decomposition.]
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Measurement Methods
NIOSH 1003; OSHA 7
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 12.5 ppm:
(APF = 25) Any supplied-air respirator operated in a continuous-flow mode£
(APF = 25) Any powered, air-purifying respirator with organic vapor cartridge(s)£
Up to 25 ppm:
(APF = 50) Any chemical cartridge respirator with a full facepiece and organic vapor cartridge(s)
(APF = 50) Any air-purifying, full-facepiece respirator (gas mask) with a chin-style, front- or back-mounted organic vapor canister
(APF = 50) Any powered, air-purifying respirator with a tight-fitting facepiece and organic vapor cartridge(s)£
(APF = 50) Any self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator with a full facepiece
Up to 850 ppm:
(APF = 2000) Any supplied-air respirator that has a full facepiece and is operated in a pressure-demand or other positive-pressure mode
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, skin absorption, ingestion, skin and/or eye contact
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Symptoms
Irritation eyes, skin, respiratory system; central nervous system depression; liver, kidney damage
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Target Organs
Eyes, skin, respiratory system, central nervous system, liver, kidneys
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See also: INTRODUCTION
See ICSC CARD: 0108 |
