WebElements Periodic Table of the Elements | Hafnium

Hafnium compounds: hafnium dihydride

The hafnium in hafnium dihydride formally is in the oxidation state 2.

Hafnium dihydride

Formula as often written: HfH₂
Hill system formula: H₂Hf₁
CAS registry number: [12770-26-2]
Formula weight: 180.506
Class: hydride

Synonyms

hafnium dihydride
hafnium(II) hydride
hafnium hydride

Physical properties

Colour:
Appearance: crystalline solid
Melting point:
Boiling point:
Density: 11400 kg m^-3

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Element analysis

Element percentages for the elements in hafnium dihydride
Element	%
H	1.12
Hf	98.88

Synthesis

Not available

Isotope pattern

What follows is the calculated isotope pattern for the HfH₂ unit with the most intense ion set to 100%.

Formula: Hf₁H₂

mass  %
176   0.5 
177   0.0 
178  14.8 _______
179  53.0 __________________________
180  77.8 _______________________________________
181  38.8 ___________________
182 100.0 __________________________________________________
183   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.