1984•American Water Works AssociationRequires access

Determination of Chlorine Dioxide, Chlorine, Chlorite, and Chlorate in Water

E. Marco Aieta, Paul V. Roberts, Margarita García-Hernández

Abstract

This article describes a procedure for either amperometric or potentiometric determination of iodine formed by the oxidation of iodide by chlorine dioxide, chlorine, chlorite, and chlorate. Either phenylarsine oxide or sodium thiosulfate can be used as the titrant. Sample pretreatment and pH adjustment are used to differentiate among the various chlorine species.

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Key concepts: Chlorate, Chlorine dioxide, Chemistry, Chlorine, Chlorite, Sodium chlorate, Sodium thiosulfate, Inorganic chemistry