沉淀和络合反应体系中离子分布的计算方法研究  

A New Method for Calculating Ions Distribution in a Precipitation-Complex Reaction System

作　　者：郑大录[1,2] 郑英勋[1,2] 范世华[1] 

机构地区：[1]东北大学分析科学研究中心,沈阳110819 [2]清津矿山金属大学

出　　处：《中国无机分析化学》2012年第1期77-82,共6页Chinese Journal of Inorganic Analytical Chemistry

摘　　要：提出了一种计算方法,定量地计算了沉淀和络合化学反应体系中的金属阳离子和阴离子的分布,考察了影响沉淀和络合物形成的各种因素。基于提出的公式,计算了金、银、铜、镍阳离子和氰根阴离子的沉淀率,理论计算与实验结果一致。A new method was proposed for the calculation of ion distributions of metallic cation and anion in the complicated reaction system, in which precipitate and complex formed simultaneously. The various factors that influence the formation of precipitate and complex were studied. The concentrations of the me- tallic cations including Au＋ , Ag＋ , Cu＋ , Zn2＋ , Cd2＋ , Ni2＋ and anion CN- were calculated based on the de- scribed algorithm, and the precipitation rates of the ions were obtained. The calculation results were in a- greement with the experimental values.

关 键 词：离子沉淀率 络合物形成率 氰化物 分布 

分 类 号：O655.24[理学—分析化学] O655.25[理学—化学]