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Solid state reactions in the potassium iodate and molybdenum(VI) oxide system

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Abstract

The reaction between potassium iodate and molybdenum(VI) oxide in mixtures of different mole ratios has been investigated employing TG and DTA techniques in static air atmosphere. The products are characterised by infrared spectroscopy, chemical analysis and X-ray diffraction studies. The studies indicate the formation of mono-, di-, tri- and tetramolybdates of potassium from mixtures with 2∶1, 1∶1, 2∶3 and 1∶2 mole ratios of KlO3∶MoO3. The kinetics of the reaction was followed and the energy of activation values were computed.

Zusammenfassung

In umbewegter Luftatmosphäre wurde mittels TG- und DTA-Verfahren die Reaktion zwischen Kaliumjodat und Molybdän(VI)-oxid in Gemischen mit unterschiedlichen MolVerhältnissen untersucht. Die Produkte werden mit Hilfe von IR-Spektroskopie, chemischer Analyse und Röntgendirfraktionsuntersuchungen beschrieben. Die Untersuchungen an der Reaktion von Gemischen mit einem KlO3∶MoO3 Molverhältnis von 2∶1, 1∶1, 2∶3 und 1∶2 zeigen die Bildung von Mono-, Di-, Tri- bzw. Tetramolybdat des Kaliums. Die Reaktionskinetik wurde untersucht und die Aktiyierungsenergien berechnet.

Резюме

Методом ТГ и ДТА в стат ической атмосфере воздуха исследована реакция между иодатом калия и окись ю шестивалентного мо либдена, взятых в различных мо лярных соотношениях. Образу ющиеся продукты были охарактеризованы ИК спектроскопией, химическим и рентген рфазовым анализом. Ус тановлено образование моно-, ди-, т ри- qi тетрамолибдатов кал ия в смесях с молярным соотношением KIO3∶MoO3 рав ным 2∶1,1∶1,2∶3 и 1∶2. Прослежена кинети ка реакции и вычислен ы энергии активации.

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References

  1. C. E. Otto and H. S. Fry, J. Am. Chem. Soc., 45 (1923) 1134.

    Article  Google Scholar 

  2. A. E. Harvey, M. T. Edmison, E. O. Jones, L. A. Seybert and K. A. Gatto, J. Am. Chem. Soc., 76 (1954) 3270.

    Article  Google Scholar 

  3. M. R. Udupa, Thermochim. Acta, 9 (1974) 427.

    Article  Google Scholar 

  4. M. R. Udupa, Thermochim. Acta, 13 (1975) 349.

    Article  Google Scholar 

  5. M. R. Udupa, Indian J. Chem., 15A (1977) 868.

    Google Scholar 

  6. M. R. Udupa and K. Srinivasan, Therm. Anal. Proc. 6th Int. Conf., 1980, p. 205.

  7. A. W. Coats and J. P. Redfern, Nature (London), 201 (1964) 68.

    Google Scholar 

  8. P. Caillet and P. Saumagne, J. Mol. Str., 4 (1969) 351.

    Article  Google Scholar 

  9. G. M. Clark and W. P. Doyle, Spectrochim. Acta, 22 (1966) 1441.

    Article  Google Scholar 

  10. P. Caillet, Bull. Soc. Chim. Fr., 12 (1967) 4750.

    Google Scholar 

Download references

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Suba, K., Udupa, M.R. Solid state reactions in the potassium iodate and molybdenum(VI) oxide system. Journal of Thermal Analysis 35, 1191–1195 (1989). https://doi.org/10.1007/BF01913037

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  • DOI: https://doi.org/10.1007/BF01913037

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