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Sodium carbonate for industrial use - Determination of sulphate content - Barium sulphate gravimetric method by ISO/TC 47 Chemistry is a reference work available to read on EtoBox.
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The principle in dissolution of a test portion and separation of the insoluble matter. Precipitation of sulphate as barium sulphate in dilute hydrochloric acid medium. Separation of the precipitate obtained and ignition at 800 °C +- 25 °C and weighing. The method is applicable to products having a sodium sulphate content equal to or greater than 0,01 % (m/m). Replaces ISO Recommendation R 743-1968.
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- Author
- ISO/TC 47 Chemistry
- Publisher
- ISO
- Published
- 1976
- Language
- EN
- Category
- reference
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