Advertisement

Reaction Kinetics and Catalysis Letters

, Volume 27, Issue 2, pp 221–224 | Cite as

A kinetic study of the of oxidation of octacyanotungstate(IV) by bromate

  • P. de Toro
  • A. Maestre
  • M. Balón
Article

Abstract

The kinetics of the oxidation of octacyanotungstate(IV) by bromate have been studied in acidic perchlorate solutions at different temperatures and 0.50 M ionic strength. The reaction is partially autocatalytic. The kinetics of the uncatalyzed pathway follows the rate law;
$$ - d[W(CN)_8^{4 - } ]/dt = 6(k_0 + k_1 [H^ + ]^2 )[BrO_3^ - ][W(CN)_8^{4 - } ]$$
where k0=1.5×10−3 M−1 sec−1 and k1=9.6×10−2 M−2 sec−1 at 25 °C

Keywords

Oxidation Physical Chemistry Catalysis Ionic Strength Perchlorate 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Abstract

Кинетика окисления октациановольфрамата(VI) броматом была исследована в кислом перхлоратном растворе при различныш температурах и при ионной силе 0,50 М. Реакция носит частично автокаталитический характер. Кинетика некатализированной ступени подчиняется следующему закону скорости:
$$ - d[W(CN)_8^{4 - } ]/dt = 6(k_0 + k_1 [H^ + ]^2 )[BrO_3^ - ][W(CN)_8^{4 - } ]$$
. гдэ К0=1,5×10−3 МОЛЬ−1 СеК−1 и К1=9,6×10−2 МОЛЬ−2 СеК−1) ПРИ 25 °C

Preview

Unable to display preview. Download preview PDF.

Unable to display preview. Download preview PDF.

References

  1. 1.
    R. C. Thompson: J. Amer. Chem. Soc.,93 7315 (1971).Google Scholar
  2. 2.
    J. P. Birk: Inorg. Chem.,12, 2468 (1973).Google Scholar
  3. 3.
    R. C. Thompson: Inorg. Chem.,10, 1892 (1971).Google Scholar
  4. 4.
    J. P. Birk, S. G. Kozub: Inorg. Chem.,12, 2460 (1973).Google Scholar
  5. 5.
    J. G. Leipoldt, L. D. C. Bok, P. J. Cillies: Z. anorg. allg. Chem.,407, 350 (1974).Google Scholar
  6. 6.
    W. C. Bray, H. A. Liebhafsky: J. Amer. Chem. Soc.,57, 51 (1935).Google Scholar
  7. 7.
    J. P. Birk, S. G. Kozub: Inorg. Chem.,17, 1186 (1978).Google Scholar
  8. 8.
    H. Baadsgaard, W. D. Treadwell: Helv. Chim. Acta.,38, 1669 (1955).Google Scholar
  9. 9.
    I. M. Kolthoff, W. J. Tomsicek: J. Phys. Chem.,40, 247 (1936).Google Scholar
  10. 10.
    J. G. Leipoldt, L. D. C. Bok, J. S. van Vollenhoven, J. P. Maree: Z. anorg. allg. Chem.,434, 293 (1977).Google Scholar
  11. 11.
    M. Balón, F. Ferranti, A. Maestre, A. Indelli: Gazz. Chim. Ital.,110, 129 (1980).Google Scholar

Copyright information

© Akadémiai Kiadó 1985

Authors and Affiliations

  • P. de Toro
    • 1
  • A. Maestre
    • 1
  • M. Balón
    • 1
  1. 1.Dpto. Fisicoquímica Aplicada, Facultad de FarmaciaUniversidad de SevillaSpain

Personalised recommendations