Abstract

Based on the experimental studies of the dissolution of Cr₂O₃ and CuO in an acidic environment, as well as investigation of the effect of acids, pH, and concentration of anions on the rate of dissolution of the oxides, the nature of the limiting stage is determined which consists in the formation of surface compounds (depending on the acidity of the environment) of the \({\text{MeOH}}_{s}^{{x + }}\) and \({\text{MeHSO}}_{{4s}}^{{x + }}\) types and their subsequent transition into the solution of the electrolyte. The comparative analysis of the dissolution of the oxides of two d metals is performed.

中文翻译：

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模拟酸性环境中铬（III）和氧化铜的溶解过程

摘要

基于在酸性环境中溶解Cr ₂ O ₃和CuO的实验研究，以及研究酸，pH和阴离子浓度对氧化物溶解速率的影响，限制的性质确定的阶段包括\（{\ text {MeOH}} _ {s} ^ {{x +}} \）和\（{\ text }的表面化合物（取决于环境的酸度）的形成{MeHSO}} _ {{4s}} ^ {{x +}} \）类型及其随后转变为电解质溶液的过程。对两种d金属氧化物的溶解度进行了比较分析。