| http://www.w3.org/ns/prov#value | - depicted by the formula: ##STR5## wherein R.sub.1 is a saturated or unsaturated alkyl group having about 6 to about 24 carbon atoms, R.sub.2 is a methyl or ethyl group, R.sub.3 is a methyl or ethyl group, M.sup.+ is about 1 to about 6, and n.sup.+ is an
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