Chlorobromomethane
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CAS
74-97-5
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CH2BrCl
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RTECS
PA5250000
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Synonyms & Trade Names
Bromochloromethane; CB; CBM; Fluorocarbon 1011; Halon® 1011; Methyl chlorobromide
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DOT ID & Guide
1887 / 160
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Exposure
Limits
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NIOSH REL: TWA 200 ppm (1050 mg/m3)
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OSHA PEL: TWA 200 ppm (1050 mg/m3)
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IDLH
2000 ppm
See: 74975
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Conversion
1 ppm = 5.29 mg/m3
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Physical Description
Colorless to pale-yellow liquid with a chloroform-like odor. [Note: May be used as a fire extinguishing agent.]
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MW: 129.4
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BP: 155°F
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FRZ: -124°F
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Sol: Insoluble
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VP: 115 mmHg
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IP: 10.77 eV
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Sp.Gr: 1.93
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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
Chemically-active metals such as calcium, powdered aluminum, zinc & magnesium
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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 2000 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)£
(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 self-contained breathing apparatus with a full facepiece
(APF = 50) Any supplied-air respirator 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, throat; confusion, dizziness, central nervous system depression; pulmonary edema
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Target Organs
Eyes, skin, respiratory system, liver, kidneys, central nervous system
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See also: INTRODUCTION
See ICSC CARD: 0392 |
