Acetylene tetrabromide |
Synonyms & Trade Names Symmetrical tetrabromoethane; TBE; Tetrabromoacetylene; Tetrabromoethane; 1,1,2,2-Tetrabromoethane |
CAS No. 79-27-6 |
RTECS No. KI8225000 |
DOT ID & Guide 2504 159 |
FormulaCHBr2CHBr2 |
Conversion 1 ppm = 14.14 mg/m3 |
IDLH 8 ppm
See: 79276 |
Exposure Limits NIOSH REL: See Appendix D
OSHA PEL: TWA 1 ppm (14 mg/m3) |
Measurement Methods
NIOSH 2003
See: NMAM or OSHA Methods |
Physical Description Pale-yellow liquid with a pungent odor similar to camphor or iodoform. [Note: A solid below 32°F.] |
MW: 345.7 |
BP: 474°F (Decomposes) |
FRZ: 32°F |
Sol: 0.07% |
VP: 0.02 mmHg |
IP: ? |
Sp.Gr: 2.97 |
Fl.P: NA |
UEL: NA |
LEL: NA |
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| Noncombustible Liquid |
Incompatibilities & Reactivities Strong caustics; hot iron; reducing metals such as aluminum, magnesium & zinc |
Exposure Routes inhalation, ingestion, skin and/or eye contact |
Symptoms irritation eyes, nose; anorexia, nausea; headache; abdominal pain; jaundice; leukocytosis (increased blood leukocytes); central nervous system depression |
Target Organs Eyes, respiratory system, liver, central nervous system |
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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
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First Aid (See procedures)
Eye: Irrigate immediately
Skin: Water flush promptly
Breathing: Respiratory support
Swallow: Medical attention immediately |
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 |
| See also: INTRODUCTION See ICSC CARD: 1235 See MEDICAL TESTS: 0005 |
