Gallium(III) iodide

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Gallium(III) iodide
Gallium(III) iodide
CAS number 13450-91-4 YesY
PubChem 83478
ChemSpider 75316 YesY
Jmol-3D images Image 1
Molecular formula Ga2I6
Molar mass 450.436 g/mol
Appearance light yellow powder
Density 4.15 g/cm3
Melting point 212 °C
Boiling point 345 °C
Solubility in water decomposes
EU classification not listed
NFPA 704
Flammability code 0: Will not burn. E.g., water Health code 4: Very short exposure could cause death or major residual injury. E.g., VX gas Reactivity code 1: Normally stable, but can become unstable at elevated temperatures and pressures. E.g., calcium Special hazards (white): no codeNFPA 704 four-colored diamond
Except where noted otherwise, data are given for materials in their standard state (at 25 °C (77 °F), 100 kPa)
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Infobox references

Gallium(III) iodide is the chemical compound with the formula Ga2I6. It is the most common iodide of gallium. In the chemical vapor transport method of growing crystals of gallium arsenide uses iodine as the transport agent. It reversibly forms GaI3.[1]

Gallium triiodide can be reduced with gallium metal to give a green-colored solid called "gallium(I) iodide." The nature of this species is unclear, but it is useful for the preparation of compounds of gallium(I) and gallium(II) and is reported as useful in organic syntheses.[2][3]


  1. ^ C. Brünig, S. Locmelis, E. Milke, M. Binnewies, "Chemischer Transport fester Lösungen. 27. Mischphasenbildung und chemischer Transport im System ZnSe/GaAs" Zeitschrift für anorganische und allgemeine Chemie 2006, 632, 6 , 1067 - 1072. doi:10.1002/zaac.200600008
  2. ^ Baker, Robert J.; Jones, Cameron. ""GaI": A versatile reagent for the synthetic chemist" Dalton Transactions (2005), (8), pp. 1341-1348. doi:10.1039/b501310k
  3. ^ GaI: A new reagent for chemo- and diastereoselective C–C bond forming reactions, Green SP, Jones C., Stasch A., Rose R.P, New J. Chem., 2007, 31, 127 - 134, doi:10.1039/b613669a

See also[edit]