Fluoroalkylphosphate salts are new. Fluoroalkylphosphate salts of formula (I) are claimed. (Ma+)b((CnF2n+1-mHm)yPF5-y(CR1R2)xPF5-y (CnF2n+1-mHm)y)(2-)(a.b/2) (I) Ma+ = mono-, di- or trivalent cation; a=1-3; b = 2, 2 or 1 for a = 1, 3 and 2 respectively; n ...