Abstract
Thermal analyses under quasi-isothermal-isobaric conditions were used to follow the condensation reactions proceeding during the calcination of zinc hydrogenphosphate. Its calcination in an electric oven under isothermal conditions was adopted for preparation of the intermediates and the main product, which were analysed by chromatography, IR spectroscopy, NMR spectroscopy, X-ray analysis and electron microscopy.
Zusammenfassung
Es wurde eine thermische Analyse unter quasi-isothermen-isobaren Bedingungen zur Untersuchung der während des Kalzinierens von Zinkhydrogenphosphat ablaufenden Kondensationsreaktion durchgeführt. Das Kalzinieren in einem elektrischen Ofen wurde zur Darstellung der Zwischenprodukte und des Hauptproduktes benutzt, welche mittels Chromatographie, Infrarot- und NMR-Spektroskopie sowie Röntgenstrukturanalyse und Elektronenmikroskopie untersucht wurden.
Резюме
Квази-изотермически й-изобарный термичес кий анализ был использов ан для исследования реакци й конденсации, протек ающих при кальцинировании кис лого фосфата цинка. Обжиг, проведен ный в электропечи в изотермических усло виях, был использован для получения промежуто чных продуктов и осно вного продукта реакции, ана лиз которых проводил ся с помощью хроматогра фии, ИК спектроскопии и спектроскопии ЯМР, ре нтгеноструктурного анализа и электронно й микроскопии.
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Authors wish to thank Prof. E. Pungor for valuable discussions.
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Brandová, D., Trojan, M., Paulik, F. et al. Mechanism of dehydration of ZnHPO4 · H2O. Journal of Thermal Analysis 32, 1923–1928 (1987). https://doi.org/10.1007/BF01913985
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DOI: https://doi.org/10.1007/BF01913985