To a suspension was added 20 mL Diethyl phosphite(一种化学药品) in a dropwise fashion, after which the temperature was kept at 80 ℃ for 30 min. 返回小木虫查看更多
是否逐滴加入更好
将20ml的二乙基磷酸酯加入到悬浮液里,然后80度恒温30分钟,
逐滴加入
,
是否逐滴加入更好
将20ml的二乙基磷酸酯加入到悬浮液里,然后80度恒温30分钟,