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MgSO₄

Magnesium sulfate

IUPAC : Magnesium sulfate
SulfateSaltPharmaceuticalEverydayIndustrialFood

Epsom salt (MgSO₄·7H₂O) is a staple of pharmacy and wellness (relaxing baths, laxative). Used in agriculture as a magnesium source and in emergency medicine (eclampsia).

3D ball-and-stick representation of Magnesium sulfate (formula MgSO₄). Constituent atoms: Mg, S, O.
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Physical properties

Molar mass120.366 g/mol
State at 20 °Csolid
Density2.66 g/cm³
Melting point1397.00 K (1124 °C)
Boiling point—
Solubility (H₂O)35.5 g/100 mL à 20 °C

Structure

Crystal systemOrthorhombic
3D render modeBall-and-stick

Uses and applications

  • Foot baths and relaxing baths (Epsom salt)
  • Osmotic laxative
  • Emergency medicine (IV treatment of eclampsia)
  • Agriculture (magnesium supply for crops)
  • Desiccant in organic chemistry (drying solvents)

Constituent elements

12Mg
Magnesium
16S
Sulfur
8O
Oxygen

References

PubChem CID24083
CAS7487-88-9
SMILES[Mg+2].[O-]S([O-])(=O)=O
Sources : PubChem CID 24083 · CRC Handbook of Chemistry and Physics