Magnesium sulfite
Encyclopedia
Magnesium sulfite is the magnesium
salt of sulfurous acid
with the formula . Its most common hydrated form has 6 water molecules making it a hexahydrate, ·6. When heated above 40 °C (104 °F), it is dehydrated to magnesium sulfite trihydrate, or ·3. The anhydrous form is hygroscopic, meaning that it readily absorbs water from the air.
Magnesium
Magnesium is a chemical element with the symbol Mg, atomic number 12, and common oxidation number +2. It is an alkaline earth metal and the eighth most abundant element in the Earth's crust and ninth in the known universe as a whole...
salt of sulfurous acid
Sulfurous acid
Sulfurous acid is the chemical compound with the formula H2SO3. There is no evidence that sulfurous acid exists in solution, but the molecule has been detected in the gas phase...
with the formula . Its most common hydrated form has 6 water molecules making it a hexahydrate, ·6. When heated above 40 °C (104 °F), it is dehydrated to magnesium sulfite trihydrate, or ·3. The anhydrous form is hygroscopic, meaning that it readily absorbs water from the air.