络合效应与硫化镉沉淀

Complex Effect and Precipitation of Cadmium Sulfide

硫化镉难以沉淀的原因,是由于在盐酸介质中,Cd^(2+)能与 Cl^-形成一系列氯—镉络合物[CdCl_n]^((2-n))(n≤4),从而使可形成 CdS 沉淀的游离的 Cd^(2+)浓度大大降低。本文从理论计算与实验结果两方面论述了这一问题。

In this paper,a problem has been discussed from the theory and laboratory that cadmium sulfide can not be precipitated in a solution of hydrogen chloride,because of ion Cd^(2+) can produce a complex compoud[CdCl]^((2-n)) (n≤4) with ions Cl^-.