Magnesium chloride is the name for the chemical compound with the formula MgCl2 and its various hydrates MgCl2ₓ. These salts are typical ionic halides, being highly soluble in water.

  • Formula: MgCl2
  • Molar mass: 95.211 g/mol
  • IUPAC ID: Magnesium chloride
  • Melting point: 714 °C
  • Boiling point: 1,412 °C
  • Density: 2.32 g/cm³
  • Soluble in: Water


  • Most commonly used for dust control and road stabilization.
  • 2nd common use is ice control.
  • Fertilizer, Mineral supplement for animals, waste water treatment, wall board, artificial sea water, feed supplement, textiles, paper, fire proofing agent, cement and refrigeration brine.
  • Also used in fire extinguishers.
  • Several medical and topical applications.
  • Used in hydrogen storage.
  • Niche uses.
  • Culinary use.
  • Gardening and Horticulture.


Technical Name Magnesium Nitrate
Formula Mg(NO3)2 6H2O
Appearance White Crystal
Assay 99 % min
MgO 15.80 % min
Nitrogen 10.80 % min
PH Value 6.5 – 7.5
Heavy Metal Content 0.001 % max
Iron 0.001 % max
Insoluble 0.05% max

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