B+ ! wherein n is an integer of from about 8 to about 20 and B is a cation in an amount of from about 75 to about 95 percent by weight of the fluorocarbon mixture, preferably in an amount of from about 85 to about 93 percent by weight of the fluorocarbon mixture, and more preferably in an amount of about 90 percent by weight of the fluorocarbon mixture, and the fluorinated material of the formula