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日本三菱材料(株)中央研究所的佐山恭正著文介绍了有色金属与稀有金属分析中试料的溶解方法。在有色金属与合金的化学分析中,试料的溶解方法是整个分析方法不可缺少的有机组成部分,要选择最合适的试样溶解方法才能得到预想的结果。对于金属与合金试样的分解,一般可用盐酸、硝酸、硫酸等单独的酸,或使用混合酸。有几点必须注意:①溶解时的钝化,如用硝酸溶解Al、Cr、Ti等。②测定元素的挥发损失、如As、Ge、Hg、Se等的氯化物和氢化物,As、B、Bi等的氟化物。③生成难溶性沉
Masayuki Masahosuke of Central Research Institute of Mitsubishi Materials Co., Ltd. introduced the dissolution method of the sample in the analysis of nonferrous metals and rare metals. In the chemical analysis of non-ferrous metals and alloys, the dissolution of the sample is an integral part of the overall analytical method, and the most appropriate sample dissolution method is chosen to achieve the desired result. For the decomposition of metal and alloy samples, usually hydrochloric acid, nitric acid, sulfuric acid and other acid alone, or the use of mixed acid. There are several points must be noted: ① dissolution passivation, such as nitric acid dissolved Al, Cr, Ti and so on. ② Determination of elemental volatile loss, such as As, Ge, Hg, Se and other chloride and hydride, As, B, Bi fluoride. ③ generate insoluble Shen