A cleaning compound is provided. The cleaning compound includes about 0.1
weight percent to about 10 weight percent of a fatty acid dispersed in
water. The cleaning compound includes an amount of a base sufficient to
bring a pH of the fatty acid water solution to about a level where above
about 50% of the dispersed fatty acid is ionized. A method for cleaning a
substrate, a system for cleaning a substrate, and a cleaning solution
prepared by a process are also provided.