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Study on the method of dissolving silver sample contained in sulfide ores

Zhang Fengru(Dept.of Chemistry,Jiaying Institute)  
The best condition and design of the experiment are studied in determining the micro silver in gold concentrate,rare metals,non-ferrous metals,tailings and other different ores by the dithizone spectrophotometry,in which the sulfide ores are dissolved by HCl-HNO_3-Br_2(l) system.Results show that the method has the advantages of simplicity,rapidly,sensitivity and accuracy,and it has been successfully applied in determination of silver with satisfactory results.
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