有关钛铁中钛的分析方法以往文献介绍很多,一般采用硫酸-盐酸-硝酸溶解,焦硫酸钾熔融法;碳酸钠熔融法分解样品;也有用硫酸-氢氟酸溶解,焦硫酸钾熔融法;硫酸-盐酸-硝酸一次直接分解样品;或介绍用氢氟酸溶解等等。将溶解后的溶液以锌初步还原,冷却至室温,通过Zn-Hg剂或镉、铋的还原器,用Fe~(+3)的标准液滴定。我们认为上述方法有如下的不足:操作烦琐、时间嫌长、不能满足现代工业生产的需要。有 Titanium analysis of titanium in the past, the literature describes a lot of the general use of sulfuric acid - hydrochloric acid - nitric acid dissolved potassium pyrosulfate melt; sodium carbonate melt decomposition of samples; also useful sulfuric acid - hydrofluoric acid dissolved potassium pyrosulfate melt; Sulfuric acid - hydrochloric acid - nitric acid once the direct decomposition of the sample; or introduce dissolved with hydrofluoric acid and so on. After the solution was dissolved with zinc reduction, cooled to room temperature, by Zn-Hg agent or cadmium, bismuth reducer, with Fe ~ (+3) standard solution titration. We think the above methods have the following deficiencies: cumbersome operation, too long time, can not meet the needs of modern industrial production. Have