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The Solid Solution between NaClO3 and NaBrO3 Revisited
Version 1
: Received: 21 June 2023 / Approved: 22 June 2023 / Online: 22 June 2023 (11:42:09 CEST)
A peer-reviewed article of this Preprint also exists.
Simon, F.; Couvrat, N.; Bilot, C.; Marinel, S.; Malo, S.; Coquerel, G. The Solid Solution between NaClO3 and NaBrO3 Revisited. Minerals 2023, 13, 1006. Simon, F.; Couvrat, N.; Bilot, C.; Marinel, S.; Malo, S.; Coquerel, G. The Solid Solution between NaClO3 and NaBrO3 Revisited. Minerals 2023, 13, 1006.
Abstract
NaClO3 and NaBrO3 are believed to form a complete solid solution from RT to fusion. The unique solid phase can thus be written: NaClO3 (1-x)-NaBrO3 (x) with: 0 ≤ x ≤ 1. This study shows that at high temperature this statement might be valid. Nevertheless, up to 50°C and probably up to 160°C and even higher temperature, this is not true when the system is in thermodynamic equilibrium. A large miscibility gap exists at room temperature (RT). This gap could be reduced up to a complete disappearance by fast crystallization, for instance by spray-drying. The necessary conditions to access to equilibrium including homochirality are also discussed.
Keywords
Sodium Chlorate, Sodium Bromate, solid solutions, stable & metastable equilibria, spray-drying
Subject
Chemistry and Materials Science, Inorganic and Nuclear Chemistry
Copyright: This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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