ISO 2270:1989
Non-ionic surface active agents; polyethoxylated derivatives; iodometric determination of oxyethylene groups
- Standard No.
- ISO 2270:1989
- Release Date
- 1989
- Published By
- International Organization for Standardization (ISO)
- Latest
- ISO 2270:1989
- Scope
- 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.
ISO 2270:1989 history
- 1989 ISO 2270:1989 Non-ionic surface active agents; polyethoxylated derivatives; iodometric determination of oxyethylene groups
- 1972 ISO 2270:1972 Surface active agents — Ethylene oxide adducts — Iodometric determination of oxyethylene groups
