ISO 2488:1973
Potassium sulphate for industrial use; Determination of chloride content; Mercurimetric method

Standard No.

ISO 2488:1973

Release Date

1973

Published By

International Organization for Standardization (ISO)

Status

Withdraw 2002-05

Latest

ISO 2488:1973

Scope

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.

ISO 2488:1973 history

• 1973 ISO 2488:1973 Potassium sulphate for industrial use; Determination of chloride content; Mercurimetric method