请问三乙胺如何无水处理? ref:purification of lab chemicals 5th: triethylamine [121-44-8] m 101.2, b 89.4°, d 0.7280, n 1.4005, pk25 10.82. dried with caso4, lialh4, linde type 4a molecular sieves, cah2, koh, or k2co3, then distd, either alone or from bao, sodium, p2o5 or cah2. it has also been distd from zinc dust, under nitrogen. to remove traces of primary and secondary amines, triethylamine has been refluxed with acetic anhydride, benzoic anhydride, phthalic anhydride, then distd, refluxed with cah2 (ammonia-free) or koh (or dried with activated alumina), and again distd. 从上述文献来看,没有用k的,可以用na。不过最常用的是koh;浸泡的一般就足够了,要求高就在koh中蒸一遍。 以下是引用 tlmowen10 在2006-5-1 22:11:11的发言: na太活泼了 很容易出事。 k难道不比na更活泼? 查看更多