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Solid state reactivity of organic compounds with inorganic compounds. IV synthesis and thermal decomposition of uranium oxinate in the solid state

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Abstract

8-hydroxyquinoline (oxine) and uranyl acetate react in the solid state in 1∶3 stoichiometry to give UO2(C9H6NO)2·C9H6NOH. This reaction is diffusion controlled with an activation energy of 44.4 kJ mol−1. The reaction occurs by the surface migration of 8-hydroxyquinoline, which penetrates the product lattice to react with uranyl acetate. The isothermal decomposition of the solution phase product UO2Q2·HQ (Q=C9H6NO) obeys the Prout-Tompkins equation with an energy of activation of 53.3 kJ mol−1.

Zusammenfassung

Die Festkörperreaktion von 8-Hydroxychinolin und Uranylazetat im Verhältnis 1∶3 liefert UO2(G9H6NO)2·C9H6NOH. Die Reaktion ist diffusionsbestimmt und besitzt eine Aktivierungsenergie von 44.4 kJmol−1. Die Reaktion verläuft durch die Oberflächenmigration von 8-Hydroxychinolin, welches zur Reaktion mit Uranylazetat in das Gitter des Produktes eindringt. Die thermische Zersetzung der Mischphase UO2Q2·HQ mitQ=C9H6NO unterliegt der Prout-Tompkins-Gleichung mit einer Aktivierungsenergie von 53,3 kJ·mol−1.

Резюме

8-оксихинолин и уранил ацетат реагируют в твердом состоянии в с техиометрическом соотношении 1∶3, образу я соединение UO2(C9H6NO)2·C9H6NOH. Реакция определяетс я диффузионным механи змом с энергией актив ации 44,4 кдж·моль−1. Реакция п ротекает путем поверхностной магра ции 8-оксихинолина, кот орый проникает в решетку у ранилацетата и реагирует с ним. Изоте рмическое разложени е жидкой фазы UO2 Q 2 · HQ (Q=C9H6NO) подчиняется уравнен ию Праута-Томпкинса с энергией активации 53,3 кдж·моль−1.

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Authors and Affiliations

  1. Department of Chemistry, Guru Nanak dev University, 143005, Amritsar, India

    P. S. Bassi, G. S. Chopra & K. Kaur

Authors
  1. P. S. Bassi
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  2. G. S. Chopra
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  3. K. Kaur
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Bassi, P.S., Chopra, G.S. & Kaur, K. Solid state reactivity of organic compounds with inorganic compounds. IV synthesis and thermal decomposition of uranium oxinate in the solid state. Journal of Thermal Analysis 35, 1213–1221 (1989). https://doi.org/10.1007/BF01913040

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