Platinum Difluoride, PtF₂

Platinum Difluoride, Platinous Fluoride, PtF₂, was obtained by Moissan together with the tetrafluoride by heating platinum wire to 500° or 600° C. in a current of fluorine. The tetrafluoride is soluble in water, but the difluoride remains attached to the surface of the metal as a yellowish green layer, insoluble in water. Upon ignition it decomposes into fluorine and platinum.