CALCIUM HYDRIDE (CaH2):
Small Quantities. Wear nitrile rubber gloves, laboratory coat, and eye protection.
Work in the fume hood. Place the hydride in a three-necked, round-bottom flask
equipped with nitrogen inlet, dropping funnel, and condenser. Under nitrogen, and while stirring, add methanol dropwise allowing 25 mL for each 1 g of hydride. When the reaction is complete, slowly add an equal volume of water to the slurry of calcium methoxide. Wash the solution into the drain,
我以前处理氢化钙,就是把反应瓶置于冰水浴中,然后缓慢向氢化钙中加入水,有烟冒出,但没事的
用乙醇处理
CALCIUM HYDRIDE (CaH2):
Small Quantities. Wear nitrile rubber gloves, laboratory coat, and eye protection.
Work in the fume hood. Place the hydride in a three-necked, round-bottom flask
equipped with nitrogen inlet, dropping funnel, and condenser. Under nitrogen, and while stirring, add methanol dropwise allowing 25 mL for each 1 g of hydride. When the reaction is complete, slowly add an equal volume of water to the slurry of calcium methoxide. Wash the solution into the drain,
别乱倒,处理时慢慢加水分解
呵呵,谢谢红包
貌似用水就可以处理吧,好像要比较慢
先用乙醇,不冒气泡了再用甲醇,最后用水
一般就加入回流,加入前预处理下
倒入甲醇中处理下就好了