Zirconium(IV) iodide

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Zirconium(IV) iodide
Zirconium(IV) iodide
ZrI4structure2.jpg
ZrI4structure3.jpg
Identifiers
CAS number 13986-26-0 N
ChemSpider 75903 YesY
Jmol-3D images Image 1
Properties
Molecular formula ZrI4
Molar mass 598.842 g/mol
Appearance orange-yellow crystalline
hygroscopic
Density 4.580 g/cm3, solid
Melting point 499 °C (930 °F; 772 K)
(triple point)
Boiling point 431 °C (808 °F; 704 K) (sublimes)
Solubility in water soluble
Structure
Crystal structure Monoclinic, mP30
Space group P2/c, No. 13
Hazards
EU classification not listed
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 3: Short exposure could cause serious temporary or residual injury. E.g., chlorine gas Reactivity code 2: Undergoes violent chemical change at elevated temperatures and pressures, reacts violently with water, or may form explosive mixtures with water. E.g., phosphorus Special hazards (white): no codeNFPA 704 four-colored diamond
Related compounds
Other anions Zirconium(IV) fluoride
Zirconium(IV) chloride
Zirconium(IV) bromide
Other cations Titanium tetraiodide
Hafnium tetraiodide
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
 N (verify) (what is: YesY/N?)
Infobox references

Zirconium(IV) iodide is the chemical compound with the formula ZrI4. It is the most stable and most readily available iodide of zirconium.

This orange-coloured species is volatile, subliming as intact tetrahedral ZrI4 molecules. It is prepared by the direct reaction of powdered zirconium metal and iodine.[1]

Pyrolysis of zirconium(IV) iodide gas by contact of hot wire was the first industrial process for the commercial production of pure ductile metallic zirconium. This crystal bar process was developed by Anton Eduard van Arkel and Jan Hendrik de Boer in 1925.[2]

References[edit]

  1. ^ Eberly, K. C. "Zirconium (IV) Iodide" Inorganic Syntheses McGraw-Hill: New York, 1963; Vol. 7, pages 52-54. ISBN 0-88275-165-4.
  2. ^ van Arkel, A. E.; de Boer, J. H. (1925). "Darstellung von reinem Titanium-, Zirkonium-, Hafnium- und Thoriummetall". Zeitschrift für anorganische und allgemeine Chemie (in German) 148 (1): 345–350. doi:10.1002/zaac.19251480133.