Abstract
The disproportionation of sodium thiosulfate to form sodium sulfite and elemental sulfur has been studied in the temperature range 495–548°K by means of X-ray photoelectron spectroscopy (XPS). The disproportionation started with an induction period, followed by a steady-state disproportionation rate regime, and ended up with a diffusion rate-controlling process. The duration of the induction period was inversely proportional to the temperature of heating. The disproportionation in the steady-state regime followed a first-order reaction rate law with the enthalpy and entropy of activation H* = 26.0 kcal/ mol and S* = -14.9 eu.
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© 1984 The Humana Press Inc.
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Xu, X.B., Chang, S.G. (1984). Study of the Disproportionation of Sodium Thiosulfate by X-Ray Photoelectron Spectroscopy. In: Margrave, J.L. (eds) Modern High Temperature Science. Humana Press. https://doi.org/10.1007/978-1-4612-5180-4_9
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DOI: https://doi.org/10.1007/978-1-4612-5180-4_9
Publisher Name: Humana Press
Print ISBN: 978-1-4612-9600-3
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