What is pf 6?

PF6 is the chemical formula for the compound hexafluorophosphate. It is an inorganic ion that consists of one phosphorus atom and six fluorine atoms. Hexafluorophosphate is a commonly used reagent in chemistry as a counterion for many transition metal complexes, as well as for the preparation of fluorine-containing organic molecules. It is a colorless, odorless, and non-flammable solid that is highly reactive with water. Hexafluorophosphate is considered to be toxic and can cause skin and eye irritation if it comes into contact with the skin or eyes.