ISO 2480:1972 工业用氯化钠.硫酸盐含量的测定.硫酸钡重量法

标准编号：ISO 2480:1972

中文名称：工业用氯化钠.硫酸盐含量的测定.硫酸钡重量法

英文名称：Sodium chloride for industrial use — Determination of sulphate content — Barium sulphate gravimetric method

发布日期：1972-12

标准范围

该方法适用于产品中的水溶性硫酸盐，也适用于在酸性介质中制备的主溶液中的硫酸盐。其原理包括溶解试验部分和分离不溶性残留物。在沸腾的酸性介质中用氯化钡沉淀硫酸根离子。沉淀的过滤、清洗和点火。称量残留物。

The method is applicable to water soluble sulphate, in the product, but also to sulphates in a principal solution prepared in an acid medium. The principle consists in dissolution of a test portion and separation of the insoluble residue. Precipitation of the sulphate ions by barium chloride in a boiling acid medium. Filtration, washing and ignition of the precipitate. Weighing of the residue.

标准预览图