Magnesium Chloride

MgCl₂

IUPAC: Magnesium chloride

CAS: 7786-30-3

Overview

Magnesium chloride is the primary source of magnesium metal via electrolysis. It is also used as a road de-icer, tofu coagulant, and dust suppressant.

Composition

Element Symbol Atoms Atomic Mass
Magnesium Mg 1 24.3050
Chlorine Cl 2 35.4500

Elemental Composition

Mg
Magnesium ×1
25.5%
Cl
Chlorine ×2
74.5%

Uses

  • • De-icing roads
  • • Magnesium metal production
  • • Tofu coagulant (nigari)
  • • Dust control

Fun Facts

  • ✦ Used as nigari to coagulate soy milk into tofu, a tradition going back centuries in Japan

Structure

SMILES

[Mg+2].[Cl-].[Cl-]

Properties

Type
salt
State
solid
Molar Mass
95.21 g/mol
Density
2.3200 g/cm³
Melting Point
714.0 °C
Boiling Point
1412.0 °C
Solubility
543 g/L at 20°C

Molecular Descriptors

Exact Mass
93.9227
TPSA
0.0 Ų
H-Bond Donors
0
H-Bond Acceptors
2
Rotatable Bonds
0
Heavy Atoms
3
Complexity
0.0

Related Compounds

Ammonium Bicarbonate

NH₄HCO₃

Ammonium Chloride

NH₄Cl

Ammonium Sulfate

(NH₄)₂SO₄

Barium Carbonate

BaCO₃

Barium Chloride

BaCl₂

Barium Sulfate

BaSO₄

Cadmium Sulfide

CdS

Calcium Acetate

Ca(C₂H₃O₂)₂

Calcium Carbonate

CaCO₃

Calcium Citrate

Ca₃(C₆H₅O₇)₂

Frequently Asked Questions

What is Magnesium Chloride?
Magnesium Chloride (MgCl₂) is a salt compound with the IUPAC name Magnesium chloride.
What is the molecular weight of Magnesium Chloride?
Magnesium Chloride has a molar mass of 95.21 g/mol.
What state is Magnesium Chloride at room temperature?
Magnesium Chloride is a solid at room temperature.
Is Magnesium Chloride organic or inorganic?
Magnesium Chloride is classified as an inorganic compound.
What elements make up Magnesium Chloride?
Magnesium Chloride (MgCl₂) is composed of Magnesium (Mg), Chlorine (Cl).