R7## wherein R1 is an alkyl group including at least 16 carbon atoms, and R2 and R3 are hydrogen, and wherein the amine is a solid compound at room temperature; and (b) a sufficient amount of acid such that essentially no solid particles of the amine are present in the composition and such that the composition has a pH of about 5.3 to 8.1, said acid selected from the group consisting of an inorgan