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Thermochimica ActaVolume 278, Issue 1-2, 25 May 1996, Pages 157-164

Dehydration behavior of some microporous zincophosphates(Article)

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  • aNational Institute of Chemistry, P.O. Box 30, 61115 Ljubljana, Slovenia
  • bDept. of Chem. and Chem. Technology, University of Ljubljana, Ljubljana, Slovenia

Abstract

The dehydration behavior of two synthetic, unsubstituted and cobalt-substituted, zincophosphates (one a sodalite analog and the other a new, hexagonal phase) was studied by TG/DTG and DSC. TG/DTG curves of the sodalite phases were very similar, exhibiting only one major weight loss that shifted to higher temperatures with increased amount of cobalt substitution. The profiles of the corresponding DSC curves, however, differed considerably among themselves. TG/DTG curves of hexagonal phases showed a more complex, multi-step dehydration behavior; the corresponding DSC curves also exhibited multiple endotherms. An explanation of these phenomena is given in terms of the specific arrangement of water molecules within a particular zincophosphate framework.

Author keywords

Cobalt-ZincophosphatesDehydrationTG-DTG-DSCZincophosphates

Funding details

  • 1

    The authors acknowledge the Ministry of Science and Technology of the Republic of Slovenia for financial support of this research.

  • ISSN: 00406031
  • CODEN: THACA
  • Source Type: Journal
  • Original language: English
  • DOI: 10.1016/0040-6031(95)02692-4
  • Document Type: Article
  • Publisher: Elsevier

  Gabrovšek, R.; National Institute of Chemistry, P.O. Box 30, Slovenia;
© Copyright 2017 Elsevier B.V., All rights reserved.

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