naphthenic acid


Definition of naphthenic acid

: any of numerous chiefly monocarboxylic acids derived from naphthenes and obtained from naphthene-base and asphalt-base petroleums usually : a commercial viscous liquid mixture of such acids used especially in the form of salts (as copper naphthenate) as paint driers and preservatives for wood and textiles — see metallic soap

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one from the Upper Peninsula of Michigan

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