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The kinetic study of thermal dehydration stages of SrCl 2 · 2H 2 O and its deuterium analog
Author(s) -
Tanaka Haruhiko,
Shimada Satoshi,
Negita Hisao
Publication year - 1985
Publication title -
international journal of chemical kinetics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.341
H-Index - 68
eISSN - 1097-4601
pISSN - 0538-8066
DOI - 10.1002/kin.550170203
Subject(s) - chemistry , kinetic isotope effect , dehydration , deuterium , kinetic energy , nucleation , hydrate , isothermal process , activation energy , isotope , hydrogen , thermodynamics , organic chemistry , nuclear physics , biochemistry , physics , quantum mechanics
The kinetic deuterium isotope effect in the thermal dehydration stages of powdered SrCl 2 · 2H 2 O was examined by means of both isothermal and dynamic gravimetries. These dehydration processes proved to be controlled by a random nucleation and its subsequent growth mechanism. No significant kinetic isotope effect was seen in these dehydration stages. It seems that there exists a kinetic compensation effect between the hydrate and its deuterium analog, if any isotopic differences in activation energy and frequency factor could exist.