| http://www.w3.org/ns/prov#value | - Classes of surfactants which are useful include: soaps or the salts of fatty acids, such as those having the general formula RCOOM, where R is a fatty aliphatic group and M is an alkali metal, e.g., sodium oleate, laurate, palmitate, or stearate; fatty alkyl sulfates, such as those of the general formula ROSO2 OM, e.g., sodium octyl, decyl, dodecyl, tetradecyl, hexadecyl, heptadecyl, or octadecyl
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