Fluoronium

Fluoronium is a cation (chemical compound with positive electric charge) made of hydrogen and fluorine. It has the chemical formula . It can also mean any halonium ion based on fluorine.

Fluoronium is a very strong acid. It is the conjugate acid of hydrogen fluoride, a chemical that is one of the weakest bases. Fluoronium is the main source of acidity in superacids based on HF, including fluoroantimonic acid, by some definitions the strongest known acid.

 References 

Category:Onium ions
Category:Fluorine compounds
Category:Superacids