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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.


(Chemistry) of, relating to or derived from naphthene
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Tenders invited for Ehv grade transformer oil of naphthenic base
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 study lead to the development of heavy naphthenic black oil (Heavy NBO) that is said to exhibit good performance.
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.
4bn turnover Swedish supplier of naphthenic base oils and derivatives where he was sales director global accounts.
However, what he and UWindsor biology professor Jan Ciborowski found was that the GI treatment dramatically reduced the levels of organic pollutants--primarily naphthenic acids--concentrated in the tailings by the oil sand extraction process.
De-aromatic solvents, also called dearomatized hydrocarbon solvents or ultra-low aromatic solvents, are a class of hydrocarbon solvents that are characterized by the presence of paraffinic, iso-paraffinic, and naphthenic components with very low aromatic content (<2%).
Process oil is a mixture of aromatic, paraffinic, and naphthenic compounds.
The thermotropic liquid crystalline polymer is based on naphthenic polyesters; the laser activators are spinel crystals with two or more metal oxide clusters; and the dielectrics are ceramic fillers such as barium titanate or carbon particles.
ClickPress, Fri Sep 25 2015] Transformer Oil Market by Type (Mineral- Naphthenic and Paraffinic), by Application (Small transformers, Large Transformers, Utility & Others), & Region (Asia-Pacific, North America, Europe, ROW) - Global Trends & Forecasts to 2020
In her work, she proved that this concept could be used to break down the toxic naphthenic acids that occur in oil sands tailings water 14 times more quickly than occurs naturally when tailings are stored in conventional ponds.