WebElements Periodic Table of the Elements | Tungsten

Tungsten compounds: tungsten trichloride

The tungsten in tungsten trichloride formally is in the oxidation state 3.

Tungsten trichloride

Formula as often written: [W₆Cl₁₂]Cl₆
Hill system formula: Cl₁₈W₆
CAS registry number: [20193-56-0]
Formula weight: 1741.189
Class: chloride

Synonyms

tungsten trichloride
tungsten(III) chloride
tungsten chloride

Physical properties

Colour: red
Appearance: crystalline solid
Melting point: 470°C (decomposes to WCl₂ + WCl₅)
Boiling point:
Density:

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Element analysis

Element percentages for the elements in tungsten trichloride
Element	%
Cl	36.65
W	63.35

Synthesis

Not available

Solid state structure

Geometry of tungsten:
Prototypical structure:

Crystal structure of tungsten trichloride

Isotope pattern

What follows is the calculated isotope pattern for the [W₆Cl₁₂]Cl₆ unit with the most intense ion set to 100%.

Formula: W₆Cl₁₈

mass  %
1721   0.0 
1722   0.0 
1723   0.0 
1724   0.0 
1725   0.1 
1726   0.4 
1727   0.7 
1728   1.7 _
1729   2.8 _
1730   5.7 ___
1731   8.2 ____
1732  14.7 _______
1733  18.8 _________
1734  30.4 _______________
1735  35.0 __________________
1736  52.0 __________________________
1737  54.1 ___________________________
1738  75.2 ______________________________________
1739  70.8 ___________________________________
1740  93.2 _______________________________________________
1741  79.2 ________________________________________
1742 100.0 __________________________________________________
1743  76.4 ______________________________________
1744  93.6 _______________________________________________
1745  63.9 ________________________________
1746  76.9 ______________________________________
1747  46.4 _______________________
1748  55.6 ____________________________
1749  29.4 _______________
1750  35.5 __________________
1751  16.2 ________
1752  20.0 __________
1753   7.7 ____
1754   9.9 _____
1755   3.2 __
1756   4.3 __
1757   1.2 _
1758   1.7 _
1759   0.4 
1760   0.6 
1761   0.1 
1762   0.2 
1763   0.0 
1764   0.0 
1765   0.0 
1766   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.