isoalkane


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isoalkane

[¦ī·sō′al‚kān]
(organic chemistry)
An alkane with a branched chain whose next-to-last carbon atom is bonded to a single methyl group.
References in periodicals archive ?
Neste Renewable Isoalkane is sold as-is to customers directly and to partners that further process and market isoalkane-derived products according to industry needs.
Renewable NEXBTL isoalkane is a technically superior and more environmentally-friendly alternative to existing fossil raw materials.
The prevention of foaming is another significant application of renewable NEXBTL isoalkane and upgraded products made from it.
Aromatic hydrocarbons are considered to be relatively more toxic and more resistant to microbial degradation than the corresponding normal alkanes, isoalkanes, cycloalkanes, and the unsaturated aliphatic hydrocarbons [5, 31].
CHANGES IN MOLECULAR COMPOSITION AND LEVELS OF AEROBIC BIODEGRADATION LEVEL DESCRIPTION 0 paraffinic crude oil not biodegraded 1 [C.sub.1] to [C.sub.15] n-alkanes depleted minor 2 90% of [C.sub.1] to [C.sub.35] n-alkanes light removed 3 alkylcyclohexanes and alkylbenzenes removed, moderate isoalkanes (including isoprenoids) reduced 4 isoprenoids and methylnaphthalenes removed, moderate aromatics depleted in order of increasing molecular weight and alkyl substitution 5 [C.sub.14]-[C.sub.16] bicyclic alkanes extensive removed 6 smaller steranes removed, larger steranes heavy altered, 25-norhopanes formed 7 all steranes removed, 25-norhopanes more heavy abundant 8 hopanes altered very heavy 9 hopanes removed, disteranes altered, severe