naphthenic acid

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naphthenic acid [naf′thēn·ik ′as·əd]

(organic chemistry)

Any of the derivatives of cyclopentane, cyclohexane, cycloheptane, or other naphthenic homologs derived from petroleum; molecular weights 180 to 350; soluble in organic solvents and hydrocarbons, slightly soluble in water; used as a paint drier and wood preservative, and in metals production.

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No references found			The most toxic of these are a mixture of compounds known as naphthenic acids that are resistant to breakdown and persist as pollutants in the water used to extract the oils and tar. Microbes used to remove toxic compounds from crude oil and tar sands by Asian News International Traditionally, coating the exposed metallurgy in high temperature welded seals with various platings was a method to combat naphthenic acid attack. John Crane Seal Provides New Solution for High Temperature and ... by Business Wire Merichem Chemicals & Refinery Services LLC, a wholly owned subsidiary of Merichem Company, provides a diversified portfolio of products and services including innovative process technology and engineering, caustic management, naphthenic acids, copper naphthenate, and sodium hydrosulfide to the refining, chemical, and pulp and paper industries worldwide. Far East Asian Refinery Selects Merichem's New Low Sulfur Gasoline ... by Business Wire			Napata nape Naperian logarithm Naperville napex Naphish Naphtali naphtha naphtha gas naphthacene naphthalan Naphthalan Naphtha, Refined Naphthalan Ointment Naphthalene naphthalene-1,5-disulfonic acid naphthaleneacetamide naphthaleneacetic acid Naphthalenesulfonic Acids naphthalic acid naphthalin naphthenate Naphthenate Soap naphthene naphthene base Naphthenes naphthenic acid Naphthenic Acids naphthenic crude naphthine Naphthionic Acid naphthol Naphthols naphthoresorcinol naphthylamine Naphthylamines Naphthysine Napier Napier diagram Napier's analogies Napier's rules Napier, John Napier, Robert Cornelis, 1st Baron Napier of Magdala Napier, Sir Charles James Napier, Sir William Francis Patrick Napier, William Francis Patrick Napierian logarithm napiform napkin pattern Naples Naples yellow Naples, Bay			Naphthalenesulfonic Acids naphthalenic naphthalenic naphthalenic Naphthalenol Naphthalenol Naphthalenol Naphthalic Naphthalic Naphthalic naphthalic acid Naphthalidine naphthalin naphthalin naphthalin naphthaline naphthaline naphthaline Naphthalize naphthalophos Naphthazarin Naphthenate Naphthenate Soap naphthene naphthene naphthene base naphthenes naphthenes naphthenic naphthenic naphthenic acid Naphthenic Acids naphthenic crude Naphthide naphthine naphthionic acid naphthlindandione Naphthoic naphthol naphthol naphthol Naphthol blue naphthol poisoning naphthol yellow S Naphthols Naphthols Naphthols naphthoquinone naphthoquinone naphthoquinone Naphthoquinones Naphthoquinones Naphthoquinones naphthoresorcinol naphthous naphthous naphthous Naphthyl Naphthylacetic Acid Naphthylamine Naphthylamine

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