WebElements Periodic Table of the Elements | Mercury

Mercury compounds: mercury oxide

The mercury in mercury oxide formally is in the oxidation state 2.

Mercury oxide

Formula as often written: HgO
Hill system formula: Hg₁O₁
CAS registry number: [21908-53-2]
Formula weight: 216.589
Class: oxide

Synonyms

mercury oxide
mercury(II) oxide
mercuric oxide

Physical properties

Colour: yellow or red
Appearance: crystalline solid
Melting point: 500°C (decomposes)
Boiling point:
Density: 11140 kg m^-3

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Element analysis

Element percentages for the elements in mercury oxide
Element	%
Hg	92.61
O	7.39

Synthesis

Not available

Solid state structure

Geometry of mercury: 2 coordinate: linear
Prototypical structure:

Crystal structure of mercury oxide

Isotope pattern

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

Formula: Hg₁O₁

mass  %
212   0.5 
213   0.0 
214  33.3 _________________
215  56.4 ____________________________
216  77.3 _______________________________________
217  44.2 ______________________
218 100.0 __________________________________________________
219   0.1 
220  23.2 ____________
221   0.0 
222   0.0

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.