Structural Formula Vector Image
Title: Octane
CAS Registry Number: 111-65-9
Molecular Formula: C8H18
Molecular Weight: 114.23
Percent Composition: C 84.12%, H 15.88%
Line Formula: CH3(CH2)6CH3
Literature References: Found in petroleum.
Properties: Flammable liquid. mp -56.8°. d420 0.7028. bp760 125.6°. nD20 1.39764. Flash pt, open cup: 72°F (22°C). Insol in water. Slightly sol in alcohol; sol in ether; miscible with benzene, petr ether, gasoline. The term "octane rating" is explained under Gasoline.
Melting point: mp -56.8°
Boiling point: bp760 125.6°
Flash point: Flash pt, open cup: 72°F (22°C)
Index of refraction: nD20 1.39764
Density: d420 0.7028
CAUTION: Potential symptoms of overexposure are irritation of eyes and nose; drowsiness; dermatitis; aspiration of liquid may cause chemical pneumonia. See NIOSH Pocket Guide to Chemical Hazards (DHHS/NIOSH 97-140, 1997) p 236.

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