Patent ID: 8067329

Claim:
A composition comprising a compound MB(OR 7 ) x (X) 4-x wherein: R 7 is a linear, branched, cyclic, acyclic, or aromatic hydrocarbyl group, optionally substituted, having from 2 to 20 carbon atoms; X is fluoride, bromide, or iodide; M is a cation of the alkali metals Na + , K + , Li + or a cation of the type R 2 R 3 R 4 R 5 N + or R 2 R 3 R 4 R 5 P + where R 2 , R 3 , R 4 , and R 5 independently are hydrocarbyl groups of 1 to 20 carbon atoms; and x is 1 to 4, with the proviso that when x=4, R 7 is a fluorinated alkyl group.