ISO 2489:1973
$7.80
Potassium sulphate for industrial use — Determination of acidity to methyl orange
| Published By | Publication Date | Number of Pages |
| ISO | 1973-04 | 3 |
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.
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