WebElements Periodic Table of the Elements | Molybdenum

Molybdenum compounds: molybdenum disulphide

The molybdenum in molybdenum disulphide formally is in the oxidation state 4.

Molybdenum disulphide

Formula as often written: MoS₂
Hill system formula: Mo₁S₂
CAS registry number: [1317-33-5]
Formula weight: 160.072
Class: sulphide

Synonyms

molybdenum disulphide
molybdenum(IV) sulphide
molybdenum disulfide
molybdenum sulfide
molybdenum sulphide
molybdenum(IV) sulfide

Physical properties

Colour: black
Appearance: crystalline solid
Melting point: 1185°C; 2375°C
Boiling point: 450°C
Density: 5060 kg m^-3; 4800 kg m^-3

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Element analysis

Element percentages for the elements in molybdenum disulphide
Element	%
Mo	59.94
S	40.06

Synthesis

Not available

Solid state structure

Geometry of molybdenum:
Prototypical structure:

Crystal structure of molybdenum disulphide

Isotope pattern

What follows is the calculated isotope pattern for the MoS₂ unit with the most intense ion set to 100%.

Formula: Mo₁S₂

mass  %
156  57.5 _____________________________
157   0.9 
158  41.0 ____________________
159  62.3 _______________________________
160  69.0 __________________________________
161  43.5 ______________________
162 100.0 __________________________________________________
163   5.0 __
164  45.8 _______________________
165   0.7 
166   3.5 __
167   0.0 
168   0.1

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.