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 (năf′thēn′, năp′-)
Any of several cycloalkane hydrocarbons having the general formula CnH2n and found in various petroleums.

naph·then′ic (-thĕn′ĭk) adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


(Chemistry) of, relating to or derived from naphthene
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
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References in periodicals archive ?
The mineral oil segment is further classified into naphthenic oil and paraffinic oil.
Based on Material, the naphthenic segment is projected to be the largest segment, as they are widely used for the manufacturing of various products.
Non-ionic surfactants, base fluid/carrier, corrosion inhibitors, biocides, solvents, additives, scale inhibitors, and friction reducers are some of the categories of cryptic within which franking fluids fall are catch-all-category for number of fluids for example Branched, Poly or Naphthenic Acidethoxylate, Omega and Alpha.
In order to improve the quality of its petroleum products, technology for cleaning the fuel with alkali and producing naphthenic acid feedstock was acquired under licenses from the Merichem Company of the U.S.
In this article, we discuss the delivery of MR via elastomeric specific masterbatches, as well as via a naphthenic oil based dry liquid concentrate (DC) into an OTR formulation, and the resulting improved tear, wear and abrasion properties are evaluated.
Ergon companies are engaged in a wide range of operations including sophisticated crude oil processing, marketing naphthenic and paraffinic specialty oils, producing and marketing specialty asphalt products, manufacturing and marketing road maintenance products and machinery, transporting and terminaling raw materials and refined products, propane marketing, oil and gas exploration and real estate development--among other undertakings.
WHAT incendiary liquid is a mixture of naphthenic and palmitic acids?
At high concentrations, salts and naphthenic acids would potentially affect fish and other aquatic life.
Tailings contain a host of toxins including bitumen, naphthenic acids, cyanide, phenols and metals such as arsenic, cadmium, chromium, copper, lead and zinc.
This 69% increase will be reflected in much higher prices on hydrocarbon solvents, paraffinic oils, naphthenic oils and other direct and indirect downstream raw materials based on crude oil.