Oxidation of N-Nitrosodimethylamine (NDMA) Precursors with Ozone and Chlorine Dioxide: Kinetics and Effect on NDMA Formation Potential

Lee, Changha; K. Schmidt, Carsten; Yoon, Jeyong; von Gunten, Urs

doi:10.1021/es062484q

Public

Oxidation of N-Nitrosodimethylamine (NDMA) Precursors with Ozone and Chlorine Dioxide: Kinetics and Effect on NDMA Formation Potential

Published in Environmental Science & Technology • Feb 13, 2007

Authors:

Changha Lee

Carsten K. Schmidt

Jeyong Yoon

Abstract

The oxidation of N-nitrosodimethylamine (NDMA) precursors chlorine dioxide (ClO2). Second-order rate constants for the reactions of model NDMA precursors (dimethylamine (DMA) and 7 tertiary amines) with ozone (kapp at pH 7 = 2.4 x 10(-1) to 2.3 x 10(9) M(-1) s(-1)), ClO2 (kapp at pH 7 = 6.7 x 10(-3)...

Subject

Chlorine dioxide

Dimethylamine

Chemistry

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