| http://www.w3.org/ns/prov#value | - -quaternary ammonium salts dimethyl-phenyl-benzyl ammonium salts higher alkylpyridinium salts laurylpyridinium salts and polyalkyl-naphthalene methylpyridinium salts, wherein said alkyl group is a lower alkyl group containing up to 6 carbon atoms or a higher alkyl group containing from about 11 to 20 carbon atoms, and said aryl group being phenyl. 2.
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