Soap - Wikipedia
Soap is a salt of a fatty acid used in a variety of cleansing and lubricating products. Soapy surfactants are used for washing, bathing, and housekeeping.In industrial settings, soaps are used as thickeners, components of some lubricants, and precursors to catalysts.. When used for cleaning, soap solubilizes particles and grime, which can then be separated from the article being cleaned.