Indium tri-iodide, InI₃

Indium tri-iodide, InI₃, is produced when indium is heated with an excess of iodine in an atmosphere of carbon dioxide. It is a hygroscopic, yellow solid, melting at c. 200° to a red liquid which can be slowly distilled in carbon dioxide at high temperatures. The tri-iodide is soluble in water, alcohol, ether, chloroform, and xylene.