Preprint Article Version 1 Preserved in Portico This version is not peer-reviewed

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

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