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Compounds of magnesium:

magnesium (II) chloride

• Formula as commonly written: MgCl₂
• Hill system formula: Cl₂Mg₁
• CAS registry number: [7786-30-3]
• Formula weight: 95.21
• Class: chloride

Synonyms

• magnesium (II) chloride
• magnesium chloride
• magnesium dichloride

Physical properties

• Colour: white
• Appearance: crystalline solid
• Melting point: 714°C
• Boiling point: 1412°C
• Density: 2325°C

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Element analysis and oxidation numbers

Synthesis

Not available

Solid state structure

• Geometry of magnesium:
• Prototypical structure: CdCl₂

Isotope pattern

What follows is the calculated isotope pattern for the MgCl₂ unit with the most intense ion set to 100%.

Formula: Mg₁Cl₂

mass  %
 94 100.0 __________________________________________________
 95  12.7 ______
 96  77.9 _______________________________________
 97   8.1 ____
 98  19.1 __________
 99   1.3 _
100   1.4 _

References

The data on these compounds pages are assembled and adapted from the primary literature and several other sources including the following.

• R.T. Sanderson in Chemical Periodicity, Reinhold, New York, USA, 1960.
• N.N. Greenwood and A. Earnshaw in Chemistry of the Elements, 2nd edition, Butterworth, UK, 1997.
• F.A. Cotton, G. Wilkinson, C.A. Murillo, and M. Bochmann, in Advanced Inorganic Chemistry, John Wiley & Sons, 1999.
• A.F. Trotman-Dickenson, (ed.) in Comprehensive Inorganic Chemistry, Pergamon, Oxford, UK, 1973.
• R.W.G. Wyckoff, in Crystal Structures, volume 1, Interscience, John Wiley & Sons, 1963.
• A.R.West in Basic solid state chemistry Chemistry, John Wiley & Sons, 1999.
• A.F. Wells in Structural inorganic chemistry, 4th edition, Oxford, UK, 1975.
• J.D.H. Donnay, (ed.) in Crystal data determinative tables, ACA monograph number 5, American Crystallographic Association, USA, 1963.
• D.R. Lide, (ed.) in Chemical Rubber Company handbook of chemistry and physics, CRC Press, Boca Raton, Florida, USA, 77th edition, 1996.
• J.W. Mellor in A comprehensive treatise on inorganic and theoretical chemistry, volumes 1-16, Longmans, London, UK, 1922-1937.
• J.E. Macintyre (ed.) in Dictionary of inorganic compounds, volumes 1-3, Chapman & Hall, London, UK, 1992.

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