有关锡的分折方法文献上已记载很多,一般硫化物分离或溴化物的蒸出以及蒸馏法分离锡,然后以碘量法进行测定。以上各种方法有的分析时间比较长,有的精确度低。为了更好地配合生产的需要,我们进行了这一项的工作。田中克提出了锡(IV)于盐酸、硫酸溶液中以碘化物形态进行萃取分离,以比色法测定锡。我们在这一方面进行了一些试验工作,获得比较满意的结果。 There are a lot of literature about tin splitting method. Generally, sulfide is separated or bromide is distilled off, and tin is separated by distillation. Then the content of tin is measured by iodometry. Some of the above methods for some analysis time is longer, and some low accuracy. In order to better meet the needs of production, we conducted this work. Tian Zhongke proposed tin (IV) in hydrochloric acid, sulfuric acid solution in the form of iodide extraction separation, colorimetric determination of tin. We conducted some experiments in this area and obtained satisfactory results.