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P-methoxybenzeneacetonitrile was prepared in 34. 8% yield starting from anisole, via chloromethylation, cyanogenation and fractional distillation.

为原料,经过氯,氰反应后,通过精馏获得对乙腈,总收率为34.8%。

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语 第一季

During fractional distillation, hydrocarbons are separated according to their......- Melting point.

分馏过程中烃类是以什么分离开的?- 熔

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科学大揭秘

In the process of fractional distillation, diesel is extracted first, followed by gasoline as the crude is refined further.

在分馏过程中,柴首先被提取,然随着原的进一步精炼而被提取。

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microdosage, microdose, micro-dosimetry, microdosis, microdot, microdrawing, Microdrili, micro-drilling, microdurometer, micro-dynagraph,

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