M

Magnesium chloride

IUPAC: magnesium dichloride

MgCl2 Salts CAS 7786-30-3
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Quick Reference
Formula / NotationMgCl2
CAS Number7786-30-3
Molecular Weight95.21
Melting Point712 °C (rapid heating)
Boiling Point1,412 °C
Density2.32
SolubilityVery soluble in water, freely soluble in ethanol
AppearanceLiquid; Water or Solvent Wet Solid; Dry Powder; Other Solid; Dry Powder, Other Solid; Pellets or Large Crystals; Pellets or Large Crystals, Other Solid; Dry Powder, Pellets or Large Crystals
Also Known Asmagnesium dichloride; 7786-30-3; Magnesium dichloride; Magnesium chloride anhydrous; MgCl2; Anhydrous magnesium chloride; DTXSID5034690; NSC-529832; 59XN63C8VM; CHEBI:6636
CategorySalts

What is Magnesium chloride?

Magnesium dichloride is a magnesium salt comprising of two chlorine atoms bound to a magnesium atom. It has a role as a NMR chemical shift reference compound. It is an inorganic magnesium salt, an inorganic chloride and a magnesium halide.

Formula & Notation

MgCl2

IUPAC Name: magnesium dichloride

Other Names / Synonyms: magnesium dichloride; 7786-30-3; Magnesium dichloride; Magnesium chloride anhydrous; MgCl2; Anhydrous magnesium chloride; DTXSID5034690; NSC-529832; 59XN63C8VM; CHEBI:6636

Properties & Characteristics

Appearance: Liquid; Water or Solvent Wet Solid; Dry Powder; Other Solid; Dry Powder, Other Solid; Pellets or Large Crystals; Pellets or Large Crystals, Other Solid; Dry Powder, Pellets or Large Crystals. Molecular formula: Cl2Mg. Molecular weight: 95.21 g/mol. Boiling point: 1,412 °C. Melting point: 712 °C (rapid heating). Density: 2.32. Solubility: Very soluble in water, freely soluble in ethanol.

Physical Data

PropertyValue
Melting Point712 °C (rapid heating)
Boiling Point1,412 °C
Density2.32
Molecular Weight95.21
SolubilityVery soluble in water, freely soluble in ethanol
AppearanceLiquid; Water or Solvent Wet Solid; Dry Powder; Other Solid; Dry Powder, Other Solid; Pellets or Large Crystals; Pellets or Large Crystals, Other Solid; Dry Powder, Pellets or Large Crystals

Uses & Applications

Used in food preservation, water treatment, chemical synthesis, fertilizers, and pharmaceutical applications.

Safety Information

Irritant or toxic depending on specific salt. Some salts are oxidising agents or toxic to aquatic environments. Consult SDS before use.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Magnesium chloride
Formula MgCl2
CAS Number 7786-30-3
Molecular Weight 95.21
Category Salts
Synonyms magnesium dichloride; 7786-30-3; Magnesium dichloride; Magnesium chloride anhydrous; MgCl2; Anhydrous magnesium chloride; DTXSID5034690; NSC-529832; 59XN63C8VM; CHEBI:6636

Frequently Asked Questions

Magnesium dichloride is a magnesium salt comprising of two chlorine atoms bound to a magnesium atom. It has a role as a NMR chemical shift reference compound. It is an inorganic magnesium salt, an inorganic chloride and a magnesium halide.

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Editorial standards: Chemical data is sourced from peer-reviewed literature, CAS Registry, NIST WebBook, and PubChem. Safety information reflects guidance from OSHA, ECHA, and IAEA. For educational purposes only — always consult official SDS documentation and qualified professionals before handling chemicals.