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Solid state vibrational spectroscopy. 10—A kinetic study, using Raman spectroscopy, of the solid state thermal decompositions of sodium and potassium dithionate

✍ Scribed by Kevin D. Cleaver; J. Eric D. Davies

Publisher
John Wiley and Sons
Year
1980
Tongue
English
Weight
155 KB
Volume
9
Category
Article
ISSN
0377-0486

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✦ Synopsis

The kinetic behaviour of the solid state thermal decomposition of dithionate to sulphate, M2[Sz0,] + M,[SO,], M = Na, K, has been studied by following the temporal decrease in the intensity of the Raman band arising from the v,(SO,) mode of [S2O6]". The sodium salt displays first order kinetics, but the kinetic behaviour of the potassium salt could not be accounted for using either the conventional kinetic treatment or the Avrami-Erofeev treatment. The Raman derived data for the sodium salt agree well with previously reported pressure derived data supporting the contention that Raman spectroscopy is a valid technique to use in obtaining solid phase kinetic data.

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