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It is now produced in immense quantities, chiefly by the distillation and purification of petroleum. It consists chiefly of several hydrocarbons of the methane series.

applied somewhat indefinitely to some of the volatile products obtained in refining crude petroleum. It is a complex and variable mixture of several hydrocarbons, generally boils below 170º Fahr., and is more inflammable than safe kerosene. It is used as a solvent, as a carburetant for air gas, and for illumination in…

ganic objects, as distinguished from plants or animals. -- Mineral oil. See Naphtha, and Petroleum. -- Mineral paint, a pigment made chiefly of some natural mineral substance, as red or yellow iron ocher. -- Mineral patch. See Bitumen, and Asphalt. -- Mineral right, the right of taking minerals from land. -- Miner…

from 0.05 to 0.1 per cent of aluminium is added to lower the melting point, usually in a petroleum furnace, keeping the molten metal at the bubbling point until it becomes quiet, and then pouring the molten metal into a mold lined with a special mixture consisting essentially of molasses and ground burnt fire clay; al…

volatile, liquid, inflammable hydrocarbons, occurring naturally, and usually called crude petroleum, mineral oil, or rock oil. Specifically: That portion of the distillate obtained in the refinement of petroleum which is intermediate between the lighter gasoline and the heavier benzine, and has a specific gravity of ab…

A peculiar hydrocarbon occuring as an ingredient of Caucasian petroleum.

methane series. The most important is a colorless, volatile, inflammable liquid, found in petroleum, and a constituent of benzene or ligroin.

A colorless liquid hydrocarbon of the octylene series, occurring in Caucasian petroleum.

nce, resembling spermaceti, tasteless and odorless, and obtained from coal tar, wood tar, petroleum, etc., by distillation. It is used as an illuminant and lubricant. It is very inert, not being acted upon by most of the strong chemical reagents. It was formerly regarded as a definite compound, but is now known to be a…

A hydrocarbon of the paraffin series, (C15H32) found in petroleum, tar oil, etc., and obtained as a colorless liquid; -- so called from the fifteen carbon atoms in the molecule.

e methane or paraffin series. They are colorless, volatile liquids, two of which occur in petroleum. So called because of the five carbon atoms in the molecule.

Petroleum. [R.]

A semisolid unctuous substance, neutral, and without taste or odor, derived from petroleum by distilling off the lighter portions and purifying the residue. It is a yellowish, fatlike mass, transparent in thin layers, and somewhat fluorescent. It is used as a bland protective dressing, and as a substitute for fatty mat…

One who makes use of petroleum for incendiary purposes.

A paraffin obtained from petroleum from Rangoon in India, and practically identical with ordinary paraffin.

Transportation, as of petroleum oil, by means of a pipe conduit; also, the charge for such transportation.

A line of pipe with pumping machinery and apparatus for conveying liquids, esp. petroleum, between distant points.

he consistence of tar, and of a strong smell. It is inflammable, and intermediate between petroleum and asphalt. [Written also pisasphaltum, pisasphalt, etc.]

gaseous hydrocarbon, C3H8, of the paraffin series, occurring naturally dissolved in crude petroleum, and also made artificially; -- called also propyl hydride.

ns intermediate between gsolene and cymogene. It is obtained in the purification of crude petroleum, and is used as a refregerant.