Kinetics of the Reaction for Generation of Chlorine Dioxide from Sodium Chlorate and Hydrochloric Acid

Xin Jie Li; Dan Dan Jiang; Yue Jun Zhang

doi:10.4028/www.scientific.net/AMR.634-638.546

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 634-638Kinetics of the Reaction for Generation of...

Kinetics of the Reaction for Generation of Chlorine Dioxide from Sodium Chlorate and Hydrochloric Acid

Abstract:

Based on the mechanism of ClO₃^-/Cl^- reaction system, the kinetics for reaction of sodium chlorate and hydrochloric acid to generate ClO₂ was studied. The rate equation of this reaction system was deduced and simplified as a formula with mixed-order (combination of first-order and second-order) towards ClO₃^-. This rate formula indicates that the initial rate of the reaction is the first-order with respect to ClO₃^-, and the reaction rate is the second-order with respect to ClO₃^- when [ClO₃^-] becomes close to zero. The rate constants of the first-order were determined as 0.0168s^-1(30°C), 0.0221s^-1(40°C), and 0.0279s^-1(50°C), respectively, and that of the second-order were obtained for 0.0019L·mol^-1·s^-1(30°C), 0.0028L·mol^-1·s^-1(40°C), and 0.0060L·mol^-1·s^-1(50°C), respectively. The results of statistic test prove that the rate formula obtained in this work is credible.

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Periodical:

Advanced Materials Research (Volumes 634-638)

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546-550

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.634-638.546

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Online since:

January 2013

Authors:

Xin Jie Li, Dan Dan Jiang, Yue Jun Zhang

Keywords:

Generation of Chlorine Dioxide, Hydrochloric Acid, Kinetic, Sodium Chlorate

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References

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