Chromium(IV) fluoride is an inorganic compound with the chemical formula CrF4. It has a dark greenish-black color when solid. It rapidly hydrolyzes in presence of moisture in air or directly in water.[3]
Synthesis
When powdered chromium or CrCl3 is exposed to fluorine gas at a temperature of 350-500 °C, a mix of CrF4 and CrF5 is created. Due to hydrolysis, the CrF4 settles out as varnish-like brown beads upon cooling.[2]
Reactions
Chromium(IV) fluoride is easily reduced.[4]
It will react with water: