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《Inorganic Chemicals Industry》 2005-01
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Determination of iron content in sodium hydrosulfite

Wang Yinglin (Hu′nan Metallurgy Occupation Technique Institue,Hu′nan Zhuzhou 412000,China)  
The determination of iron content in sodium hydrosulfite by spectrophotometric method is introduced.The sample is dissolved by HCl and then the remainder solution is evaporated until the S being burned out.This can avoid the interference of impurity in the determination of iron content and solve the problem of iron content determined by traditional method in which the detecting value of iron is lower.This method has the advantages of good precision and high accuracy.The determination result is satisfactory.
【CateGory Index】: TQ138.11
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