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Agent Name Octane
CAS Number 111-65-9
Formula C8-H18
Major Category Solvents
Synonyms n-Octane; normal-Octane; [NIOSH] UN1262
Category Aliphatics, Saturated
Description Colorless liquid with a gasoline-like odor; [NIOSH]
Sources/Uses Used as a solvent and chemical raw material; Used as an antiknock agent in fuels for internal combustion engines; [HSDB]
Exposure Assessment
Skin Designation (ACGIH) No
TLV (ACGIH) 300 ppm
PEL (OSHA) 500 ppm
MAK 500 ppm
IDLH (NIOSH) 1000 ppm
Excerpts from Documentation for IDLHs Human data: The narcotic concentration has been estimated to be either 8,000 ppm [Flury and Zernik 1931] or 10,000 ppm [Patty and Yant 1929]. The fatal concentration has been estimated to be 13,500 ppm [Flury and Zernik 1931].
Vapor Pressure 14.1 mm Hg
Odor Threshold Low 15 ppm
Odor Threshold High 235 ppm
Lethal Concentration LC50 (rats) = 118,000 mg/m3/4h
Explanatory Notes IDLH = 10% LEL (lower explosive limit); Detection odor threshold from AIHA (mean = 150 ppm); Flash point = 13 deg C;
Flammability (NFPA) 3: may ignite at ambient temperature
Adverse Effects
Neurotoxin CNS Solvent Syndrome
Links to Other NLM Databases
Health Studies Human Health Effects from Hazardous Substances Data Bank: N-OCTANE  
Toxicity Information Search TOXNET
Chemical Information Search ChemIDplus
Related Information in Haz-Map
Diseases Occupational diseases associated with exposure to this agent:





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Last updated: January, 2009