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AWWA ACE58336
- Effects of the Cl2O4- Complex on the Spectrophotometric Measurement of Chlorine Dioxide
- Conference Proceeding by American Water Works Association, 06/15/2003
- Publisher: AWWA
$12.00$24.00
In the chlorine dioxide-chlorite ion system, a 1:1 complex (Cl2O4-) forms which has a significantabsorbance in the UV-visible region. The formation constant of this complex is low (around 1 M-1),but it has a significant influence on the spectrophotometric measurement of ClO2 due to its highmolar absorbance. In this work, the formation constant and molar absorbance of the complex weredetermined using spectrophotometric and numerical methods. The determined formation constantis 0.25 M-1. The effect of this complex on the ClO2 photometric measurement is demonstrated. Includes 29 references, tables, figures.
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