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 ?
Later on, when Joachim has temporarily "deserted the colors" and departed from the Berghof without leave, Hans repeats this idea to the receptive Naphta, a militant Jesuit priest: "The military always has to reckon on coming to grips with death, just as the clergy has.
Yet when Settembrini agrees to a duel with Naphta at a crisis point in their debate, even this humanist turns bellicose.
Another advantage of naphta is that it provides olefins such as polypropylene, another of the industry's building blocks.
Settembrini's view of his archenemy Naphta cannot be taken seriously.
The other equity partners confirmed are Pro-Dev, Falcon and Naphta -- three firms with links to defense and security specialists and no apparent oil industry expertise.
The company reported that for weeks, crews had been trying unsuccessfully to drain highly flammable naphta from a leaky pipe.
Rohan and Naphta have become one of Ireland's best drum and bass duos.
In Taiwan the city council of Taipeh, the capital, has stopped the government from permitting the building of a nine thousand million US dollar plant for cracking naphta.
later, not immediately, I learned that the young Georg Lukacs is partially represented in the figure of Naphta, and Hauptmann in the figure of Peeperkorn.
The project envisages balancing & modernization of Platforming/Hyrobon Units to process low value naphta to produce 28,000 tons/yr of HOBC and 1750 tons/yr of LPG which are deficit products in the country.
The Negative Rating Outlook reflects Fitch's concern about Braskem's ability to lower its elevated leverage levels, given the poor outlook of the petrochemical spread with naphta prices.
CSC Brave Trans Maritime 05/03/15 Not Sched Nil 24,000 Naphta