This standard was last reviewed and confirmed in 2019. Therefore this version remains current.
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.
Status : PublishedPublication date : 1977-02
Edition : 1Number of pages : 3
Technical Committee:Surface active agents
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