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Analysis of soaps - Determination of total free alkali by ISO/TC 91 Surface active agents is a reference work available to read on EtoBox.
What is Analysis of soaps - Determination of total free alkali about?
The soap is dissolved in an ethanolic solution, the free alkali is neutralized with a known excess of sulphuric acid solution and the excess acid is titrated with ethanolic potassium hydroxide solution. The method is not applicable if the soap cantains additives (alkali, silicates, etw.) which can be decomposed by sulphuric acid by the procedure specified. The method is also not applicable to coloured soaps if the colour interferes with the phenolphthalein end point.
Who reads Analysis of soaps - Determination of total free alkali?
It is typically read by working professionals who need an authoritative practice reference.
Common subject areas: medicine, law, business, engineering.
- Author
- ISO/TC 91 Surface active agents
- Publisher
- ISO
- Published
- 1974
- Language
- EN
- Category
- reference
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