Silazanes were divided into chain-silazane, cyclo-silazane and poly-silazane according to the material variety and synthesis method.

硅氮根据原料以及合成方法的不为链硅氮、环硅氮、聚硅氮等。

The separation of three-component system of cyclohexane,cyclo-hexene and benzene by extract rectification with a mixed solvent,comprising hexyl dicyanide and dimethyl acetylamine has been studied.

选用己-甲基乙酰胺组成的混合溶剂，对环己、环己烯和苯组成的三元体系进行了萃取精馏。