ISO 6840-1982 阳离子表面活性剂(氢氯化物和氢溴化物) 临界胶束浓度的测定 反离子活度测量法

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标准号:ISO 6840-1982
中文标准名称:阳离子表面活性剂(氢氯化物和氢溴化物) 临界胶束浓度的测定 反离子活度测量法
英文标准名称:Cationic surface active agents (Hydrochlorides and hydrobromides); Determination of critical micellization concentration; Method by measurement of counter ion activity
标准类型:G72
发布日期:1999/12/31 12:00:00
实施日期:1999/12/31 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 determination is carried out as follows: Potentiometric determination of the chloride or bromide ion activity of a series of solutions of cationic surface active agents the concentration of which cover the expected micellization concentration. Plotting the graph of potential as a function of the logarithm of the concentration; the c.m.c. corresponds to the singularity on this curve. The method is applicable to purified cationic surface active agents (hydrochlorides and/or hydrobromides), which are soluble in water and which have a Krafft temperature below 60 degree Celsius.

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