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A study of thermal preparation OF c-Mn2P4O12

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Abstract

With the application of thermogravimetry under quasi-isothermal-isobaric conditions, the reaction course of the calcination of Mn(H2PO4 · H2O to give dimanganese cyclotetraphosphate has been studied. Isothermal calcination was also carried out in an electric furnace at various temperatures (200 min). The reaction products were analyzed by chromatography, IR and NMR spectrocopy, and X-ray diffraction analysis. The compositions of the calcinates were determined through extraction with various inorganic and organic solvents.

Zusammenfassung

Der Verlauf der Dimangan-cyclotetraphosphat ergebenden Kalzinierung von Mn(H2PO4)2 · H2O wurde thermogravimetrisch unter quasi-isothermen-isobaren Bedingungen untersucht. Isotherme Kalzinierung wurde auch im elektrischen Ofen (200 min) bei verschiedenen Temperaturen ausgeführt. Die Reaktionsprodukte wurden chromatographisch, IR- und NMR-spektroskopisch sowie röntgendiffraktometrisch analysiert. Die Zusammensetzung der kalzinierten Produkte wurde via Extraktion mit verschiedenen anorganischen und organischen Lösungsmitteln bestimmt.

Резюме

Термогравиметричес ким методом в квазиизотермически х и квазиизобарных условиях изучена реа кция прокаливания со единения Mn(H2PO4 · H2O. Реакция про текает с образованием цикло тетрафосфата марган ца. Изотермическое прок аливание было проведено также в эле ктропечи при различн ых температурах. Продук ты реакции ана-лизиро вались с помощью хроматогра фии, ИК- и ЯМР-спектроск опии и рентгенофазового анализа. Состав проду ктов прокаливания бы л определен экстракцией их разли чными органическими и неор ганическими раствор ителями.

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Authors and Affiliations

  1. Department of Inorganic Technology, Institute of Chemical Technology, 53210, Pardubice, Czechoslovakia

    D. Brandová & M. Trojan

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  1. D. Brandová
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  2. M. Trojan
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Brandová, D., Trojan, M. A study of thermal preparation OF c-Mn2P4O12 . Journal of Thermal Analysis 30, 159–165 (1985). https://doi.org/10.1007/BF02128126

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  • DOI: https://doi.org/10.1007/BF02128126

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