银配合物与联氨反应中的铜(Ⅱ)离子效应

Effect of Copper (Ⅱ) Ion on the Reaction of Silver Coordination Compounds With Hydrazine

本文研究了银的不同配体配合物与N_2H_4的反应体系,获得微量铜(Ⅱ)离子的加入,不仅能有效地加快反应速度,提高银的还原沉析率,还获得银的还原沉析率随银配合物稳定常数的增大而降低的结果.

The reaction of hydrazine with several silver coordination compounds has been studied. We found that this reaction is catalyzed by a trace amount of copper(Ⅱ) ion, the rate of reaction is accelerated, and the ratio of precipitation of silver is greatly increased. With the increasing of the equilibrium constant (β2) of several silver coordination compounds, the ratio of precipitation of silver is decreased.