The determination is carried out in the following way: Titration of an ethanolic or propanolic solution of the product with a standard volumetric potassium hydroxide or hydrochloric acid or sulphuric acid solution whichever is appropriate, in the presence of phenolphthalein as indicator.
Status: PublishedPublication date: 1977-02
Edition: 1Number of pages: 2
Technical Committee: ISO/TC 91 Surface active agents
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