Magnesium sulfite is the magnesium salt of sulfurous acid with the formula MgSO
3. Its most common hydrated form has 6 water molecules making it a hexahydrate, MgSO
3·6H
2O. When heated above 40 °C (104 °F), it is dehydrated to magnesium sulfite trihydrate, or MgSO
3·3H
2O.[1] The anhydrous form is hygroscopic, meaning that it readily absorbs water from the air.

Solubility tables of MgSO3 hydrates PDF: [2]

See also

References

  1. ^ Nývlt, J., "Solubilities of Magnesium Sulfite," Journal of Thermal Analysis and Calorimetry, Volume 66, Number 2 / November, 2001
  2. ^ [1], H.D.Lutz, Dept. of Chemistry, University of Slegen.
Allikas: https://en.wikipedia.org/wiki/Magnesium_sulfite
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