Kinetics and mechanism of the reduction of tetrachloroaurate(III) by formate in acidic aqueous solution期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

Kinetics and mechanism of the reduction of tetrachloroaurate(III) by formate in acidic aqueous solution

Affiliation:	1. Hefei National Laboratory for Physical Sciences at Microscale, Department of Chemical Physics, University of Science and Technology of China, Hefei 230026, China;2. Hunan Provincial Key Laboratory of Chemical Power Sources, College of Chemistry and Chemical Engineering, Central South University, Changsha 410083, China

Abstract:	Rate data for the reduction of AuCl₄⁻ by formate, were measured at different temperatures, formate, hydrogen and chloride ion concentrations. AuCl₄⁻ and AuCl₃(OH)⁻ react with HCOOH and HCOO⁻ in the rate-determining steps of the suggested reaction mechanism to produce AuCl₃(HCOO)⁻. The latter species undergoes a rapid redox reaction in which AuCl₂⁻, Au(o) and CO₂ are produced.

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