Gold(III) Iodide

Gold(III) iodide is a chemical compound with the molecular formula AuI3. It is an ionic compound consisting of gold cations (Au3+) and iodide anions (I-). The gold cation has a +3 charge, while the iodide anion has a -1 charge.

Gold(III) iodide is a yellow crystalline solid that is sparingly soluble in water but soluble in organic solvents like acetone and ethanol. When heated, it decomposes to release iodine gas and elemental gold.

Gold(III) iodide can be prepared by reacting gold metal or gold salts with iodine in the presence of a suitable oxidizing agent such as chlorine or bromine. It can also be synthesized by reacting potassium iodide with a solution of gold(III) chloride in the presence of hydrochloric acid.

Gold(III) iodide has applications in catalysis, where it can be used as a catalyst in various chemical reactions. It is also used in nanotechnology, where it can be used to create gold nanoparticles with specific properties.