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Chemical Sampling Information |
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| Isobutylene |
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General Description
Synonyms: 1,1-Dimethylethene; 1,1-Dimethylethylene; gamma-Butylene; Isobutene; Isopropylidenemethylene; 2-Methylpropene; 2-Methyl-1-propene; 2-Methylpropylene
OSHA IMIS Code Number: M250
Chemical Abstracts Service (CAS) Registry Number: 115-11-7
NIOSH, Registry of Toxic Effects (RTECS) Identification Number: UD0890000
Department of Transportation Regulation Number (49 CFR 172.101) and Guide: 1055 115
Chemical Description and Physical Properties: Colorless gas
molecular formula: C4H8
molecular weight: 56.108
boiling point: -7.0°C (19.4°F)
vapor pressure: 268.8 kPa @ (20°C)
Potentially hazardous incompatibilities: forms explosive mixtures with air and oxidizing agents - flammable
Health Factors
Potential symptoms: mucous membrane irritation; drowsiness; headache; dizziness; excitation; excess salivation; vomiting; unconsciousness; liquid form may cause frostbite
Affected organs: mucous membranes
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Page last updated: 09/14/2005
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