Thallium(I) iodide
Thallium(I) iodide, also known as thallous iodide, is a chemical compound. Its chemical formula is TlI. It has thallium and iodide ions in it. The thallium is in its +1 oxidation state.
Properties[change | change source]
Thallium(I) iodide is a yellow solid. It does not dissolve in water. It turns red when heated gently. It is a reducing agent. It is very toxic like all thallium compounds.
Preparation[change | change source]
It is made by reacting thallium with iodine or hydroiodic acid or by reacting any soluble thallium salt like thallium(I) sulfate with any iodide.
Uses[change | change source]
Thallium(I) iodide is used in mercury-vapor lamps. It is also used in a detector of radiation.