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Oxidation of Chloride and Hypochlorite at Pt and RuO2 Anodes

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Modern Chlor-Alkali Technology

Abstract

The on-site generation of hypochlorite becomes more and more attractive. Small-scale applications are of interest for the disinfection of private swimming pools. Larger hypochlorite electrolysers are used to prevent fouling in cooling units of electricity power stations or to purify drinking water or sewage in municipal plants.

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Abbreviations

A e :

Surface area of electrode (m2)

c i :

Concentration of the species i (mol/m3)

F :

Faraday constant (96487 C/mol)

h 4 :

Slope of the n 4/c 3 curve (m3/s)

i :

Current density (kA/m2)

k i :

Mass transfer coefficient for the species i (m/s)

N :

Number of electrons involved in a reaction

n i :

Rate of formation of the species i (mol/s)

t e :

Time of electrolysis (s)

T :

Temperature (K)

v s :

Solution flow velocity (m/s)

η i :

Current efficiency of the species i

a:

Average

e:

Electrode, electrolysis

i :

Species i

Ox:

Oxygen

w:

Water

0:

Initial condition of electrolysis, t e = 0

References

  1. Ibl, N. & Vogt, H., in Comprehensive Treatise of Electrochemistry, Vol. 2, ed. J. O’M. Bockris et al. Plenum Press, New York, 1981, p. 167.

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  2. Janssen, L. J. J. & Barendrecht, E., in Modern Chlor-Alkali Technology, Vol. 3, ed. K. Wall. Ellis Horwood, Chichester, 1986, p. 430.

    Google Scholar 

  3. Janssen, L. J. J. & Barendrecht, E., Electrochim. Acta, 30 (1985) 683.

    Article  CAS  Google Scholar 

  4. Trasatti, S. & Lodi, G., in Electrodes of Conductive Metallic Oxides, Part A, ed. S. Trasatti. Elsevier, London, 1980, p. 315.

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  5. Ibl, N. & Landolt, D., J. Electrochem. Soc., 115 (1968) 713.

    Article  CAS  Google Scholar 

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Author information

Authors and Affiliations

  1. Eindhoven University of Technology, The Netherlands

    L. Czarnetzki & L. J. J. Janssen

Authors
  1. L. Czarnetzki
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  2. L. J. J. Janssen
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Editor information

Editors and Affiliations

  1. Staveley Chemicals Limited, Chesterfield, Derbyshire, UK

    N. M. Prout  & J. S. Moorhouse  & 

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© 1990 SCI

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Czarnetzki, L., Janssen, L.J.J. (1990). Oxidation of Chloride and Hypochlorite at Pt and RuO2 Anodes. In: Prout, N.M., Moorhouse, J.S. (eds) Modern Chlor-Alkali Technology. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-1137-6_25

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  • DOI: https://doi.org/10.1007/978-94-009-1137-6_25

  • Publisher Name: Springer, Dordrecht

  • Print ISBN: 978-94-010-7004-1

  • Online ISBN: 978-94-009-1137-6

  • eBook Packages: Springer Book Archive

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