Difluorophosphoric acid
Difluorophosphoric acid is an inorganic compound with the formula HPO2F2. It is a colorless liquid. The acid has limited applications, in part because it is thermally and hydrolytically unstable.
It is prepared by hydrolysis of phosphorus oxyfluoride:
Further hydrolysis gives monofluorophosphoric acid:
Complete hydrolysis gives phosphoric acid:
The salts of difluorophosphoric acid are known as difluorophosphates.
