What is Magnesium Sulphate

Commonly known as "epsom salt", it is traditionally used as a beauty product. Athletes use it to soothe sore muscles, while gardeners use it to improve crops. It has a variety of other uses covering several industries.

  • Synonyms: Bath salt, Bitter salt , English salt, Epsom salt
  • INCI: Magnesium Sulphate
  • Chemical Formula: MgSO4.7H2O
  • CAS Number: 7487-88-9

Product Specifications

Chemical Formula MgSO4.7H2O
CAS Number 7487-88-9
Molar Weight 120,366 g/mol
Specific Gravity 2.66
Melting Point 1.124 °C
Forms Odourless white powder Solution
Grades Extra Pure Feed Food Pharma Technical
Variations Crystals Granular Powder Solution

Uses and Applications for Magnesium Sulphate

Key Applications

  • Agricultural products
  • Fertiliser
  • Pharmaceutical applications


  • Water Treatment
  • Food and Nutrition
  • Pharma
  • Rubber
  • Lubricants
  • Cosmetics
  • Agriculture
  • Animal Nutrition
  • Coatings & Construction

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