ISO 2488:1973
Withdrawn
A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.
Potassium sulphate for industrial use Determination of chloride content Mercurimetric method
Hardcopy , PDF , PDF 3 Users , PDF 5 Users , PDF 9 Users
05-15-2019
English, French
04-01-1973
The principle of the analysis consists in dissolution of a test portion and addition, in a dilute acid medium, of mercuric salts which, with the chloride ions, form soluble and only slightly ionized mercury(II) chloride. Indication of the completion of the reaction by the appearance of a violet coloration due to the reaction between the excess of mercury(II) ions and the diphenylcarbazone used as indicator.
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