ISO 6122:1978 表面活性剂.工业用链烷磺酸盐.链烷磺酸盐总含量的测定

标准编号：ISO 6122:1978

中文名称：表面活性剂.工业用链烷磺酸盐.链烷磺酸盐总含量的测定

英文名称：Surface active agents — Technical alkane sulphonates — Determination of total alkane sulphonates content

发布日期：1978-08

标准范围

将试样分散在硫酸钠溶液中，并添加丁醇和丙酮的混合物，以沉淀十水硫酸钠和部分氯化钠。通过过滤得到烷烃磺酸盐（单+双）的混合物，该混合物可能被少量氯化钠邻接。蒸发溶剂，以去除少量石蜡。用重量法测定烷烃磺酸盐含量，用电位法测定氯化钠含量。

A test portion is dispersed in a sodium sulphate solution, and mixture of butan-l-ol and acetons is added to precipitate sodium sulphate decahydrate and part of sodium chloride. A mixture of alkane sulphonates (mono + di), which may be contiminated by a little sodium chloride is obtained by filtration. The solvent is evaporated so that the small quantities of paraffins are eliminated. The alkane sulphonates content is determined gravimetrically and any sodium chloride present is determined potentiometrically.

标准预览图