摘要
本文根据银与亚硫酸盐的络合体系中,存在Ag(SO_3)- 和Ag(SO_3)_2^(3-)两种络合离子的特点,采用络合离子间同时平衡的计算方法,绘出了Ag—SO_3^(2-)—H_2O对系25℃下的E—pH图.在上述基础上结合提银试验的需要,对从银的亚硫酸盐溶液中还原沉析银的热力学条件和因素进行了分析,为该工艺过程提供必要的理论依据.
According to the principle of simultaneous chemical equilibrium in complex systems and considering the charcsteristics of two silver sulfite complexes, Ag(SO3)- and Ag(SO3)23-, in the system of silver and aqueous sulfite solutions, the E-pH diagram of Ag-SO32--H2O system at 25℃ has been plotted. The diagram is more consistent with the actual conditions.
出处
《杭州大学学报（自然科学版）》
CSCD
1991年第4期449-454,共6页
Journal of Hangzhou University Natural Science Edition
