Chromium (II) iodide has a molecular formula of CrI2 and is a long-lived, electronically neutral reagent chemical. It is a grey powder with a molecular mass of 305.80 grams and a melting point of 856 degrees Celsius.
Chromium (II) iodide is a water-soluble, inorganic solid of grey crystals. It is most likely used in the lab to prepare other chromium-based substances. A closely related compound is chromium (III) iodide, which is a black solid used to prepare other chromium compounds. To obtain high purity samples of this compound, the product is thermally decomposed at 700 degrees Celsius to sublime out chromium (II) iodide.