锌铜齐的制备？ 请问您锌粉的颗粒度有要求吗，锌粉用活化吗，麻烦您给个操作。谢谢 锌粉不用活化，加硫酸铜就是活化锌粉，锌粉的颗粒没有特殊要求，不影响抽滤就可以了。 activation of zinc. a stirred suspension of 10.0 g (0.15 m) of zinc dust in 40 ml of water was degassed by bubbling n2 through it for 15 min. then 750 mg (4.7 mmol) of cuso4 was added at once. the black suspension was stirred while n2 was bubbled through it for an addi- tional 45 min. the zn-cu couple was collected on a sintered glass funnel under a stream of and washed successively with 100 ml of degassed water and acetone. the zn-cu couple was transferred to a small flask under a stream of n2 and dried at reduced pressure (0.2 mm) for 2 h. nitrogen was admitted to the system when the vacuum was broken, and the zn-cu couple stored under n2 in a tightly stop- pered flask. 查看更多
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