Magnesium Sulfate Heptahydrate (Epsom salt) is the common commercial form of magnesium sulfate, supplied as colourless or white crystals. It is used in agriculture, table water mineralisation, pharmaceuticals and industry.
- Agriculture: Fertiliser supplying magnesium and sulfur.
- Water: Mineralisation of table and drinking water.
- Pharmaceuticals: Laxative and magnesium supplement.
- Cosmetics: Bath salts and personal care products.
- Industry: Textile processing and chemical manufacturing.
Appearance
Colourless or white crystals
Odor
Odorless
Molecular Formula
MgSO4·7H2O
Molecular Weight
246.48 g/mol
Melting Point
Loses water of crystallisation on heating (from approx. 150 °C)
Density
1.68 g/cm³
Solubility
Freely soluble in water (approx. 710 g/L at 20 °C)
