, Volume 66, Issue 2, pp 509-512

Solubilities of Magnesium Sulfite

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Literature data of solubility of MgSO3 in water and in aqueous solutions of MgSO4 have been correlated. Magnesium sulfite forms hexahydrate (stable below 40°C) and trihydrate (above 40°C), nevertheless, metastable hexahydrate can precipitate at temperatures significantly higher than this transition temperature. Magnesium sulfate increases the solubility of the sulfite.

This revised version was published online in August 2006 with corrections to the Cover Date.