ISO 2480:1972
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Sodium chloride for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
| Published By | Publication Date | Number of Pages |
| ISO | 1972-12 | 4 |
The method is applicable to water soluble sulphate, in the product, but also to sulphates in a principal solution prepared in an acid medium. The principle consists in dissolution of a test portion and separation of the insoluble residue. Precipitation of the sulphate ions by barium chloride in a boiling acid medium. Filtration, washing and ignition of the precipitate. Weighing of the residue.
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