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Magnesium sulfite

Chemical compound From Wikipedia, the free encyclopedia

Magnesium sulfite
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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
2
O
. When heated above 40 °C (104 °F), it is dehydrated to magnesium sulfite trihydrate, or MgSO
3
·3H
2
O
.[1] The anhydrous form is hygroscopic, meaning that it readily absorbs water from the air.

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Solubility tables of MgSO3 hydrates PDF: [2]

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