naphtha

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naphtha

(năp`thə, năf`–), term usually restricted to a class of colorless, volatile, flammable liquid hydrocarbon mixtures. Obtained as one of the more volatile fractions in the fractional distillation of petroleumpetroleum,
oily, flammable liquid that occurs naturally in deposits, usually beneath the surface of the earth; it is also called crude oil. It consists principally of a mixture of hydrocarbons, with traces of various nitrogenous and sulfurous compounds.
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 (when it is known as petroleum naphtha), in the fractional distillation of coal tar (coal-tar naphtha), and in a similar distillation of wood (wood naphtha), it is used widely as a solvent for various organic substances, such as fats and rubber, and in the making of varnish. Because of its dissolving property it is important as a cleaning fluid; it is also incorporated in certain laundry soaps. Coal-tar (aromatic) naphthas have greater solvent power than petroleum (aliphatic) naphthas. Originally the term naphtha designated a colorless flammable liquid obtained from the ground in Persia. Later it came to be applied to a number of other natural liquid substances having similar properties. Technically, gasoline and kerosene are considered naphthas.

naphtha

[′naf·thə]
(materials)
Petroleum fraction with volatility between gasoline and kerosine; used as a gasoline ingredient, solvent for paints and rubber, and cleaning solvent.
Aromatic solvent from coal tar, either solvent naphtha or heavy naphtha.

naphtha

A distillate of petroleum or coal; generally has low solvency and high volatility; used as a solvent in paints and varnishes.

naphtha

1. a distillation product from coal tar boiling in the approximate range 80--170?C and containing aromatic hydrocarbons
2. a distillation product from petroleum boiling in the approximate range 100--200?C and containing aliphatic hydrocarbons: used as a solvent and in petrol
3. an obsolete name for petroleum
References in periodicals archive ?
Adani imported naptha in 2006- 07 and did not pay customs duty in Goa," CBI joint director Rishiraj Singh said.
Inspector Jarrett said on February 6, he visited the premises of the defendant's company and found on a concrete roof 16 gallons of mineral naptha.
Unlike Tintin, however, these characters are rendered scrupulously true to Mann's originals: Herr Naptha is still a totalitarian Jesuit, Signor Settembrini still a democratic humanist, Herr Peeperkorn still a loquacious bore, and Clavdia Chauchat still a beautiful egotist ("To be with any less than the exceptional is a form of extinction") and a faithless lover.
A continued shift to lighter feedstocks has led to supply constraints in basic raw materials, particularly propylene, xylene and naptha.
Naptha inventories were unchanged on the month at 34.
Morgan and National Bank of Egypt arranged the deal, which pays a margin of 275 basis points (bps) over LIBOR and is secured on naptha and crude exports.
Globally, petrochemical firms use oil-based feedstock such as naptha whose prices have gone up recently with the rise in global crude oil prices but players in the Middle East use gas-based feedstock such as ethane.
09) about Fels Naptha, she can get both this soap and "washing soda" at www.
Naptha produced will be used in the local chemical industry and kerosene - aviation fuel - will be transported by road or rail.
He returns to Canada from Europe where he is currently naptha feedstock manager within hydrocarbons and energy.
Their plant utilizes proven technology to convert waste oil into environmentally friendly products such as naptha (gasoline), #2 diesel, electrical power, residuum, burner fuel and cogeneration.
Based in Singapore, BGC Radix Energy will enable BGC to offer its clients voice and electronic brokerage services in the world's energy markets for the first time, with products including crude oil, naptha, middle distillates, fuel oil and freight swap derivatives.