Reference number
ISO 2487:1973
ISO 2487:1973
© ISO 2024
ISO 2487:1973
Potassium sulphate for industrial use — Determination of sulphate content — Barium sulphate gravimetric method
Edition 1
1973-04
1973-04
Retirada
Resumen
The principle consists in dissolution of a test portion and precipitation of the sulphate ions by barium chloride in boiling acid medium. Filtration, washing and ignition of the precipitate. Weighing the barium sulphate.