Ammonium hexafluorophosphate is the
inorganic compound
In chemistry, an inorganic compound is typically a chemical compound that lacks carbon–hydrogen bonds, that is, a compound that is not an organic compound. The study of inorganic compounds is a subfield of chemistry known as '' inorganic chemist ...
with the formula NH
4PF
6. It is a white water-soluble, hygroscopic solid. The compound is a salt consisting of the
ammonium
The ammonium cation is a positively-charged polyatomic ion with the chemical formula or . It is formed by the protonation of ammonia (). Ammonium is also a general name for positively charged or protonated substituted amines and quaternary a ...
cation and
hexafluorophosphate anion. It is commonly used as a source of the hexafluorophosphate anion, a
weakly coordinating anion. It is prepared by combining neat
ammonium fluoride and
phosphorus pentachloride. Alternatively it can also be produced from
phosphonitrilic chloride
Hexachlorophosphazene is an inorganic compound with the formula . The molecule has a cyclic, unsaturated backbone consisting of alternating phosphorus and nitrogen centers, and can be viewed as a trimer of the hypothetical compound . Its classi ...
:
:PCl
5 + 6 NH
4F → NH
4PF
6 + 5 NH
4Cl
:PNCl
2 + 6 HF → NH
4PF
6 + 2 HCl
References
Ammonium compounds
Hexafluorophosphates
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