Patent ID: 8106217

Claim:
An ionic liquid comprising cations and anions, wherein the anion conforms to the formula [(R F ) 2 P(O)] 2 N − , where R F has the meaning (C n F 2n−x+1 H x ) where n=1-6 and x=0-4, where, for n=1, x is 0 to 2, and the cation conforms to the formula (6) [HetN] + (6) where HetN + denotes a heterocyclic cation selected from the group consisting of where R 1′ and R 4′ each, independently of one another, denote a straight-chain or branched alkyl having 1-20 C atoms, and R 2′ and R 3′ each, independently of one another, denote hydrogen, or a straight-chain or branched alkyl having 1-20 C atoms.