Description of magnesium sulfite

White, crystalline powder. Slightly soluble in water; insoluble in alcohol.

Basic Attributes of magnesium sulfite

Molecular Weight：104.37

Exact Mass：103.94200

EC Number：231-825-6

UNII：792J6K230W

Characteristics of magnesium sulfite

PSA：82.4

XLogP3：-0.13840

Density：1.725 g/cm3

Water Solubility：g/100g solution H2O: 0.338 (0°C), 0.646 (25°C), 0.615 (98°C); solid phase, MgSO3 · 6H2O (0°C, 25°C), MgSO3 ·3H2O (98°C) [KRU93]

Use and Manufacturing

Uses

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. The anhydrous form is hygroscopic, meaning that it readily absorbs water from the air.

Manufacturing Info：

Sulfurous acid, magnesium salt (1:1): ACTIVE

Computed Properties

Molecular Weight:104.37

Hydrogen Bond Acceptor Count:4

Exact Mass:103.9418567

Monoisotopic Mass:103.9418567

Topological Polar Surface Area:82.4

Heavy Atom Count:5

Complexity:18.8

Covalently-Bonded Unit Count:2

Compound Is Canonicalized:Yes