Magnesium nitrate

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Clear, deliquescent crystals that occur naturally as the mineral nitromagnesite. In a closed environment, a saturated aqueous solution of magnesium nitrate will form an equilibrium at a relative humidity level of about 55% (20C). Magnesium nitrate is also used in fireworks.

Synonyms and Related Terms

magnesium (II) nitrate; magnesium nitrate hexahydrate (CAS # 13446-18-9)


  • Dangerous fire and explosion risk in contact with organic material.
  • Strong oxidizing agent.
  • ThermoFisher: SDS

Physical and Chemical Properties

Composition Mg(NO3)2
CAS 10377-60-3
Melting Point 89-100 C
Density 1.45-1.46 g/ml
Molecular Weight mol. wt. = 148.32
Boiling Point 330 C

Resources and Citations

  • G.S.Brady, Materials Handbook, McGraw-Hill Book Co., New York, 1971 Comment: p. 479
  • Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
  • Hermann Kuhn, Conservation and Restoration of Works of Art and Antiquities, Butterworths, London, 1986
  • The Merck Index, Martha Windholz (ed.), Merck Research Labs, Rahway NJ, 10th edition, 1983 Comment: entry 5710