WebElements Periodic Table of the Elements | Hafnium

Hafnium compounds: hafnium tetrafluoride

The hafnium in hafnium tetrafluoride formally is in the oxidation state 4.

Hafnium tetrafluoride

Formula as often written: HfF₄
Hill system formula: F₄Hf₁
CAS registry number: [13709-52-9]
Formula weight: 254.484
Class: fluoride

Synonyms

hafnium tetrafluoride
hafnium(IV) fluoride
hafnium fluoride

Physical properties

Colour: white
Appearance: crystalline solid
Melting point: >970°C
Boiling point:
Density: 7100 kg m^-3

Suppliers

Coming soon...

Element analysis

Element percentages for the elements in hafnium tetrafluoride
Element	%
F	29.86
Hf	70.14

Synthesis

Not available

Solid state structure

Geometry of hafnium:
Prototypical structure:

Crystal structure of hafnium tetrafluoride

Isotope pattern

What follows is the calculated isotope pattern for the HfF₄ unit with the most intense ion set to 100%.

Formula: Hf₁F₄

mass  %
250   0.5 
251   0.0 
252  14.8 _______
253  53.0 __________________________
254  77.8 _______________________________________
255  38.8 ___________________
256 100.0 __________________________________________________

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.