Magnesium Sulphate Anhydrous

Physical Properties

NatureNearly white salt, hygroscopic
Density2.7 g/cm3
Molecular weight120.37 g/mole
Bulk densityabt. 1.3 - 1.5 g/cm3
Angle of reposeabt.31°
Melting point1130℃
SolubilityReadily soluble in water provided that clothing is avoided. Therefore, the salt should always be intensively mixed into water and not vice versa.
Saturation point25.8% MgSO4 by weight at 20℃
Grian sizePowder form


  • As a highly concentrated magnesium fertilizer (straight application, magnesium source in compounds, liquid fertilizer).
  • In process industry: as a catalyst.
  • Dietary Supplement and laxative in Animal Health and Feed.
  • Purifying agent in glass industry.
  • Detergent industry.
  • Refractories.
  • Textile industry.
  • Ceramics manufacture.
  • Weighting of silk.
  • Mineral Water.
  • Fire-proof materials.
  • Paper industries.
  • Cosmetics industry.

Chemical Analysis

Magnesium Sulphate (as MgSO4)(Calculated with reference to the material dried at 300℃ percent by mass)99.9%
Magnesium as Mg20%
Chlorides (as Cl), percent by massMax 0.1%
Lead as Pbtraces
Arsenic as AsNil
Cadmium as CdNil
Iron as FeMax 150 PPM
Acidity or AlkalinityNeutral

General Assurance

  • Magnesium Sulphate Anhydrous is manufactured using acceptable industrial practices.
  • The material is guaranteed to meet the above-specified chemical and physical properties.


Normally Magnesium Sulphate Anhydrous is packed in 25 kg Multicolor strong Woven Polypropylene bags with a PP inner liner.

Depending on customer requirement we also pack in Jumbo bags(1.1mts), 50 kg and 25 kg HDPE bags

Magnesium Sulphate Anhydrous is highly hygroscopic and hence should be kept away from atmosphere condition and bags sealed and stored in airtight condition.