陇南铁矿石中全铁量的测定

The Determination of Total Iron Content Using

本法采用硫磷酸分解,在盐酸介质中,用二氯化锡将三价铁还原至二价,再用二氯化汞除去过量的二氯化锡,以二苯胺磺酸钠作指示剂,用重铬酸钾标准溶液滴定测全铁量。本法样品溶解完全,溶解速度快,分析精确度高。

This method uses the sulfur phosphatase decomposition,In hydrochloric acid,followed by the use of tin dichloride for feyyous reduction to valence of,Then the removal of the excess tin dichloride mercury dichloride using,Diphenylamine sulfonate as indicator,Titrated with potassium dichromate standard solution for determination of total iron content.Sample dissolved completely,Fast with high analysis precision.