Nomenclature
CAS number: 540-84-1
2,2,4-Trimethylpentane; isobutyltrimethylmethane.
C
8H
18; mol wt 114.23.
C 84.12%, H 15.88%.
Description and references
Produced by the refining of petroleum.
Properties
Highly flammable, mobile liquid. Odor of gasoline.
Antiknock octane no. 100. mp 107.45°. bp 99.3°. d420 0.69194. nD20 1.39157. Dipole moment:
0. Flash pt, closed cup: 10°F (12°C). Practically insol in water;
somewhat sol in abs alcohols; sol in benzene, toluene, xylene, chloroform,
ether, carbon disulfide, carbon tetrachloride, DMF and oils, except
castor oil.Note
The name isooctane has also been applied
to 2-methylheptane.Use
In determining octane numbers of fuels; in spectrophotometric
analysis; as solvent and thinner.