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Zirconium compounds: zirconium tetrabromide
The zirconium in zirconium tetrabromide formally is in the oxidation state 4.
Zirconium tetrabromide
- Formula as often written: ZrBr4
- Hill system formula: Br4Zr1
- CAS registry number: [13777-25-8]
- Formula weight: 410.84
- Class: bromide
Synonyms
- zirconium tetrabromide
- zirconium(IV) bromide
- zirconium bromide
Physical properties
- Colour: white
- Appearance: cystalline solid
- Melting point: 450°C
- Boiling point: 350°C; 250°C
- Density: 3980 kg m-3
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Element analysis
Element percentages for the elements in zirconium tetrabromide
| Element |
% |
| Br |
77.80 |
| Zr |
22.20 |
Synthesis
ZrO2 + 2C + 2Br2 (560°C) → ZrBr4 + 2CO
Zirconium(IV) tetrabromide may be made through the direct reaction of the elements or by passing a stream of bromine in carbon dioxide over a mixture of zirconium(IV) oxide and sugar charcoal contained in a hot pyrex tube. Purification may be achieved by vacuum sublimation. The overall yield is about 60%. Zirconium(IV) bromide is a white crystalline solid that hydrolyses when dissolved in water.
Isotope pattern
What follows is the calculated isotope pattern for the ZrBr4 unit with the most intense ion set to 100%.
Formula: Zr1Br4
mass %
406 13.7 _______
407 3.0 __
408 57.8 _____________________________
409 11.6 ______
410 100.0 __________________________________________________
411 16.9 ________
412 95.0 ________________________________________________
413 11.0 ______
414 58.2 _____________________________
415 2.7 _
416 25.3 _____________
417 0.0
418 6.9 ___
419 0.0
420 0.7
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.
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Zirconium
Zirconium
Zirconium
Zirkonium
Zirconio
Circonio
Zirkonium
Zircônio
