ISO 2270-1989 非离子表面活性剂 聚乙氧基化衍生物 氧乙烯基因数的碘量测定

标准号：ISO 2270-1989
中文标准名称：非离子表面活性剂 聚乙氧基化衍生物 氧乙烯基因数的碘量测定
英文标准名称：Non-ionic surface active agents; polyethoxylated derivatives; iodometric determination of oxyethylene groups
标准类型：G72
发布日期：1999/12/31 12:00:00
实施日期：1989/8/15 12:00:00
中国标准分类号：G72
国际标准分类号：71.100.40
适用范围：The sample is hydrolyzed by nascent hydroiodic acid. The iodine liberated is titrated with a standard volumetric sodium thiosulfate solution. The method is applicable to the analysis of polyethoxylated derivatives of primary saturated fatty alcohols, oleyl alcohol, satureted fatty acids, straight and branched chain alkylphenols. It is not applicable in the present of compounds containing sulfur or nitrogen, compounds containing oxypropylene group, aldehydes or acetals, sterols and derivatives.