标准摘要
[中文适用范围]： 将测试部分溶解在乙醇中并将溶液酸化。 通过用轻质石油萃取将烷烃单磺酸与烷烃二磺酸盐和硫酸根离子分离。 蒸发轻质石油相并将残余物溶解在乙醇中。 通过阳离子交换柱除去痕量的碱。 用不含碳酸盐的氢氧化钠溶液中和洗出液。 将如此形成的烷烃单磺酸钠干燥并称重。 计算链烷单磺酸盐的平均相对分子质量和链烷单磺酸盐含量。 [外文原描述]： A test portion is dissolved in ethanol and the solution is acidified. The alkane monosulfonic acids are separated from the alkane disulfonates and sulfate ions by extraction with light petroleum. The light petroleum phase is evaporated and the residue is solved in ethanol. Traces of alkali are removed by means of a cation-exchange column. The eluate is neutralized with carbonate-free sodium hydroxide solution. The sodium alkane monosulfonates so formed are dried and weighed. The mean relative molecular mass of the alkanemonosulfonates and the alkanemonosulfonate content are calculated.
英文名称Surface active agents — Technical alkane sulfonates — Determination of the mean relative molecular mass of the alkane monosulfonates and the alkane monosulfonate content