ISO 2489:1973
Potassium sulphate for industrial use — Determination of acidity to methyl orange
Reference number
ISO 2489:1973
ISO 2489:1973
Edition 1
1973-04
1973-04
© ISO 2024
Withdrawn
Abstract
The principle of the analysis consists in dissolution of the test solution in water and titration of the acidity, in presence of methyl orange, using standard volumetric sodium hydroxide solution. If the solution is coloured yellow the product is not acid with respect to methyl orange.
Life cycle
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