Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 29: Issue 4
Dehydration/rehydration phenomena of surface layers of crystal hydrates
Thermal aspects
Authors:
L. Dei Department of Chemistry University of Florence Via Gino Capponi 9 50121 Firenze Italy

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G. G. T. Guarini Department of Chemistry University of Florence Via Gino Capponi 9 50121 Firenze Italy

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S. Piccini Department of Chemistry University of Florence Via Gino Capponi 9 50121 Firenze Italy

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Pages:
755–761
Online Publication Date:
24 Jul 2005
Publication Date:
01 Jul 1984
Article Category:
Research Article
DOI:
https://doi.org/10.1007/bf01913534
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The study by thermal methods of the dehydration/rehydration phenomena of crystal hydrates shows that it is possible to separate the total heat of rehydration of previously dehydrated crystals into two contributions, attributed to surface and bulk, respectively. Values obtained for a number of salt hydrates are given and the ratio between the surface portion and the total heat is found to be of the order of 1%. Such findings are in agreement with results previously obtained by optical microscopy and are discussed in terms of recent views about the reversible reactions of crystalline solids.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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