In order to accurately analyze the iron content in copper slag concentrate,this method uses hydrochloric acid and nitric acid to dissolve the copper slag concentrate samples,add bromine to remove sulfur,and uses potassium dichromate standard titration standard solution to accurately determine the iron content in iron-containing materials.In this paper,the dissolution temperature of the sample,the addition of sulfuric acid,the degree of evaporation of the sample,the addition of copper sulfate and the reduction of potassium borohydride to the color of the solution were tested one by one,and good experimental results were obtained.This method is suitable for accurate analysis of iron in copper slag concentrate.The stability and accuracy of the determination results are good,and the determination range is above 0.5％.
关键词
渣精矿/硼氢化钾/二苯胺磺酸钠/重铬酸钾标准滴定溶液
Key words
slag concentrate/potassium borohydride/sodium diphenylamine sulfonate/standard titration solution for potassium dichromate
维普
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