Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 63: Issue 3

Kinetics and Mechanism of Topochemical Transformations of Phosphoric Salts

Author:
V. Samuskevich Belarus National Academy of Sciences Institute of General and Inorganic Chemistry Minsk 220072 Belarus Minsk 220072 Belarus

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Pages:
797–805
Online Publication Date:
16 Aug 2006
Publication Date:
01 Mar 2001
Article Category:
Research Article
DOI:
https://doi.org/10.1023/a:1010152407115
Keywords:
kinetics; localization; phosphoric salts; topochemical reactions
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Abstract  

A study was made on the topochemical processes of hydration-dehydration, ammonation-deammonation, disproportionation and anionic condensation (certain of which can proceed concurrently) that occur during the production, storage and exploitation of phosphoric salts and phosphate materials. These processes which can be accompanied by complicated structural transformations and sometimes by melting were shown to be satisfactorily described by the known kinetic regularities. The detected deviations, that are associated with the anomalous influence of temperature, the gaseous phase, the size and habit of the crystals and the ageing of samples on the process rate, were explained in terms of the localization peculiarities of the reactions proceeding on the surface or in the bulk of the reactant.

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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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