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ISO 4320:1977

Non-ionic surface active agents -- Determination of cloud point index -- Volumetric method
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ISO 4320:1977

Non-ionic surface active agents -- Determination of cloud point index -- Volumetric method

PUBLISH DATE 1977
ISO 4320:1977

The determination is carried out by adding, at 30 degree Celsius, of distilled water to a propanol solution to the surface active agent until the appearance of cloudiness. The determination of the cloud point index provided a way of characterizing weakly alkoxylated derivates and their hydrocarbon hydrophobic groups. This simple and rapid measurement is a valuable means for checking the level of alkoxylation of non-ionic derivatives intended, for example, for sulphonation.

SDO ISO: International Organization for Standardization
Document Number ISO 4320
Publication Date Feb. 1, 1977
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO TC 91
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