Formation of metal chelates in solid state reaction between 8-hydroxyquinoline and carbonates of cadmium and zinc |
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| Affiliation: | 1. National Institute of Chemistry, Hajdrihova 19, SI-1000 Ljubljana, Slovenia;2. University of Ljubljana, Faculty of Chemistry and Chemical Technology, Večna pot 113, SI-1000 Ljubljana, Slovenia |
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| Abstract: | The solid state reactions between 8-hydroxyquinoline (8-HQ) and CdCO3 and ZnCO3 have been studied. The Brounshtein-Ginstling rate equation is followed in both cases. The activation energy for CdCO3-8-HQ and ZnCO3-8-HQ are respectively 92.3 ± 3.3 and 86.6 ± 0.6 kJ mole−1. The reaction products were characterized by elemental analysis, X-ray diffraction, and IR studies. Metal (Zn and Cd) carbonates and 8-HQ react in 1:2 molar ratio and the reaction proceeds via surface migration of 8-HQ. |
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