【摘要】 采用酸分解试样 ,在酸性介质中 ,以二氯化锡还原大部分三价铁 ,三氯化钛还原剩余三价铁 ,用重铬酸钾滴定测全铁量。本法加入浓硝酸溶解样品 ,使溶解更完全 ,提高了溶解温度 ,加快了溶解速度 ,分析精确度高 ,结果满意更多还原

【Abstract】 Using of acid to solubilize samples,using of stannous chloride to reduce most of ferric iron in the acid medium,using of titanous chloride to reduce residual ferric iron,total ferro quantity can be determined by potassium dichromate titration.Because thick nitric acid is used in this method and it promotes quick solubilizing、the solubilizing speed and temparature are increased and speeded separately.This method has high analysis accuracy and its result can meet the requirements of production.更多还原