2PCl2F3 + 7KOH → K[PF6] + K2HPO4 + 4KCl + 3H2O
Phosphorus(V) trifluoride-dichloride and potassium hydroxide to produce potassium hexafluorophosphate(V), potassium hydrogen phosphate, potassium chloride and water. Potassium hydroxide - cold, concentrated solution.