Rapid Determination of Metallic Ferro Content in Sponge Iron by Ferric Chloride-Potassium Dichromate Volumetric Method 三氯化铁-重铬酸钾容量法快速测定海绵铁中金属铁量
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. 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。