Abstract
The dehydration of CoHPO4 · 1.5H2O has been followed by means of thermal analyses at quasi isothermal-isobaric conditions. The intermediates and products prepared in the course of the TA and by calcination of the starting hydrogen phosphate in electric ovens at various temperatures have been analyzed and identified by means of thin-layer chromatography, IR spectroscopy, X-ray diffraction analysis and electron microscopy.
Zusammenfassung
Mittels thermischer Untersuchungen unter quasiisothermen und quasiisobaren Bedingungen wurde die Dehydratierung von CoHPO4·1.5H2O analysiert. Die im Ergebnis der Thermoanalyse und der Kalzinierens des Hydrogenphosphatausgangsmaterials in einem elektrischen Ofen bei verschiedenen Temperaturen entstandenen Zwischenprodukte und Produkte wurden mittels Dünnschichtchromatographie, IR-Spektroskopie, Röntgendiffraktion und Elektronenmikroskopie untersucht und identifiziert.
Резюме
С помощью термическо го анализа в квази-изотермически х и квази-изобарных условиях изучена дег идратация СоНРО4 · 1.5Н2О. Методом тонкослойной хромат ографии, ИК спектроскопии, рентг енофазового анализа и электронной микроск опии проведен анализ и идентификация проме жуточных продуктов д егидратации и продуктов, получаем ых в процессе ТА и при обжиге исходн ого гидрофосфата в электрических печах при различных темпер атурах.
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Authors thank Prof. E. Pungor for valuable discussions.
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Brandová, D., Trojan, M., Arnold, M. et al. Mechanism of the dehydration of CoHPO4 · 1.5H2O. Journal of Thermal Analysis 34, 673–678 (1988). https://doi.org/10.1007/BF02331769
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DOI: https://doi.org/10.1007/BF02331769