ISO 2268:1972

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Surface active agents (non-ionic) — Determination of polyethylene glycols and non-ionic active matter (adducts) — Weibull method

Published By	Publication Date	Number of Pages
ISO	1972-11	7

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Categories: 71.100.40 - Surface active agents, ISO

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Description

The method relies on the facts that both non-ionic adducts and polyethylene glycols are soluble in sodium chloride solution, but one is soluble in ethyl acetate whereas the other is not. Separation of the polyethylene glycols and the adducts is, therefore, possible by the following methods: Dissolution of the sample in ethyl acetate and extraction of polyethylene glycols by sodium chloride solution. Extraction of the polyethylene glycols isolated in the sodium chloride solution with chloroform, removal of the solvent and weighing of the residue. Evaporation of the ethyl acetate solution which contains the adducts and weighing of the residue.

Additional information

Published Code	ISO
Published By	International Organization for Standardization
Publication Date	1972-11
Pages Count	7
Language	France
Edition	1
File Size	358.4 KB
ICS Codes	71.100.40 - Surface active agents

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ISO 2268:1972

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