Dimercury dichloride

Mercury compounds: dimercury dichloride

The mercury in dimercury dichloride formally is in the oxidation state 1.

Dimercury dichloride

• Formula as often written: Hg₂Cl₂
• Hill system formula: Cl₂Hg₂
• CAS registry number: [10112-91-1]
• Formula weight: 472.085
• Class: chloride

Synonyms

• dimercury dichloride
• mercury(I) chloride
• calomel
• dimercury dichloride
• mercurous chloride
• mercury chloride

Physical properties

• Colour: white
• Appearance: crystalline solid. Light sensitive
• Melting point: 525°C (turns yellow on heating)
• Boiling point: 383°C
• Density: 7160 kg m^-3

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Element analysis

Element percentages for the elements in dimercury dichloride

Element	%
Cl	15.02
Hg	84.98

Synthesis

Not available

Solid state structure

• Geometry of mercury: 2 coordinate: linear
• Prototypical structure:

Isotope pattern

What follows is the calculated isotope pattern for the Hg₂Cl₂ unit with the most intense ion set to 100%.

Formula: Hg₂Cl₂

mass  %
464   0.1 
465   0.2 
466   3.9 __
467  12.4 ______
468  29.6 _______________
469  45.4 _______________________
470  74.5 _____________________________________
471  83.5 __________________________________________
472 100.0 __________________________________________________
473  77.8 _______________________________________
474  88.3 ____________________________________________
475  36.0 __________________
476  48.9 ________________________
477   7.9 ____
478  15.6 ________
479   0.7 
480   2.6 _
481   0.0 
482   0.2 

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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Mercury	Mercure
Quecksilber	Kwik
Mercurio	Mercurio
Kvicksilver	Mercúrio