| http://www.w3.org/ns/prov#value | - For example, the fatty soaps that may be used here have general formula R-CO 2 M, wherein R represents a linear or branched alkyl or alkenyl group having between about 8 and 24 carbons and M represents an alkali metal such as sodium or potassium or ammonium or alkyl- or dialkyl- or trialkyl-ammonium or alkanol-ammonium cation.
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