Acetylene tetrabromide
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CAS
79-27-6
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CHBr2CHBr2
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RTECS
KI8225000
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Synonyms & Trade Names
Symmetrical tetrabromoethane; TBE; Tetrabromoacetylene; Tetrabromoethane; 1,1,2,2-Tetrabromoethane
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DOT ID & Guide
2504 / 159
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Exposure
Limits
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NIOSH REL: See Appendix D
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OSHA PEL: TWA 1 ppm (14 mg/m3)
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IDLH
8 ppm
See: 79276
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Conversion
1 ppm = 14.14 mg/m3
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Physical Description
Pale-yellow liquid with a pungent odor similar to camphor or iodoform. [Note: A solid below 32°F.]
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MW: 345.7
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BP: 474°F (Decomposes)
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FRZ: 32°F
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Sol: 0.07%
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VP: 0.02 mmHg
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IP: ?
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Sp.Gr: 2.97
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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
Strong caustics; hot iron; reducing metals such as aluminum, magnesium & zinc
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Measurement Methods
NIOSH 2003
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: Water flush promptly
Breathing: Respiratory support
Swallow: Medical attention immediately
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Respirator Recommendations
OSHA
Up to 8 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, nose; anorexia, nausea; headache; abdominal pain; jaundice; leukocytosis (increased blood leukocytes); central nervous system depression
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Target Organs
Eyes, respiratory system, liver, central nervous system
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See also: INTRODUCTION
See ICSC CARD: 1235 See MEDICAL TESTS: 0005
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