| 释义 |
iso·octane
\| ̷ ̷ ̷ ̷+\ noun
Etymology: International Scientific Vocabulary is- + octane
: an octane of branched-chain structure or a mixture of such octanes: as
a. : the flammable liquid hydrocarbon (CH3)2CH(CH2)4CH3 in whose molecule there is branching only at one end of the chain; 2-methyl-heptane
b. : a flammable liquid hydrocarbon (CH3)2CHCH2C(CH3)3 made usually by hydrogenation of diisobutylene and used especially as a standard in rating motor fuels by their octane number; 2,2,4-trimethyl-pentane — not used technically
c. : hydrocodimer — used chiefly commercially |