节点文献

容量法测定高含量金样品的研究

Sutdy on Determination of Gold Concentration by Volumetric Analysis

  • 推荐 CAJ下载
  • PDF下载
  • 不支持迅雷等下载工具,请取消加速工具后下载。

【作者】 魏永春李冲王延金

【Author】 WEI Yong-chun,LI Chong,WAN Yan-jin(College of Chemical Engineering and Materials Science,Zhuhai Campus of Beijing Institute of Technology,Guangdong Zhuhai 519085,China)

【机构】 北京理工大学珠海学院化工与材料学院

【摘要】 采用双氧水盐酸法溶金-容量法直接测定金箔中的含金量,确定了金箔样品处理的方法,在0.5g金箔样品中加入8倍理论量的双氧水和6倍理论量的浓盐酸,当反应温度为80℃时,金箔溶解完全。与王水法比较,双氧水盐酸法溶金具有安全性好、污染小、易操作等优点。所建立的容量分析方法精密度、准确度符合常量分析的要求。

【Abstract】 The gold content of gold foil was determined directly by dissolving gold with hydrogen peroxide and hydrochloric-volumetric analysis method,optimal parameters to dissolve the sample was obtained when the dosages of hydrogen peroxide and hydrochloric acid were respectively 8 and 6 times of theoretical dosage,the reaction temperature was 80℃,the dissolution of gold was 100 % after gold was added into the solution of H2O2 and HCl. This method of dissolving gold had such advantages as better security,less pollution,and easier operation in comparison with aqua regia method. The precision and reliability of the methods were fit for the analysis on macro-elements.

【关键词】 双氧水盐酸金箔含金量
【Key words】 hydrogen peroxidehydrochloric acidgold foilContent of gold
  • 【文献出处】 广州化工 ,Guangzhou Chemical Industry , 编辑部邮箱 ,2011年02期
  • 【分类号】TG115.313
  • 【被引频次】4
  • 【下载频次】78
节点文献中: 

本文链接的文献网络图示:

本文的引文网络