The isocyanates can be obtained by the fluorination of nitrogenous cylic or acyclic molecules.异氰酸酯可由含氯的环(或非环)状分子氟化而得.A heavy - duty magnetic stirrer , such as Cole - Parmer model is needed during the fluorination.在氟化过程中需...
Reactor embodiments for the fluorination reactions are also disclosed.还公开了氟化反应反应器的具体实施方式.Low cost 3, 4 - difluoro nitrobenzene was prepared from 2, 4 - dinitrochlorobenzene by two - step fluorination.二硝基氯苯经二步氟化反应,制得低成本3,...
The provincial elections show that Iraqis have an appetite for it.这次大行政区选举表明:伊拉克人渴望有这样的选举.God intends for us to have an appetite for His Word.上帝想要我们对他的话语如饥似渴.If city dwellers do have an appetite for the square melon, the...
The sunset rivalled the sunrise in beauty.日落与日出的景色一样美.A green - technology industry is budding — rivalled by Denver, Boston and, of course, California.面对其竞争者丹佛市, 波士顿, 当然还有加利福尼亚,绿色科技产业正在这里慢慢兴起.Dr Drummond felt that he had...