ISO 992:1975Withdrawn

Potassium hydroxide for industrial use — Determination of chlorides content — Mercurimetric method

Hydroxyde de potassium à usage industriel — Dosage des chlorures — Méthode mercurimétrique

Abstract / scope

The method is applicable to products the chloride content of which is greater than 25 mg/kg. The procedure is based on titration of the chloride ions with mercury(II) nitrate in the presence of diphenylcarbazone as indicator. - Replaces ISO Recommendation R 992-1969.