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turpentine |
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turpentine, yellow to brown semifluid oleoresin exuded from the sapwood of pines, firs, and other conifers. It is made up of two principal components, an essential oil essential oils, volatile oils that occur in plants and in general give to the plants their characteristic odors, flavors, or other such properties. Essential oils are found in various parts of the plant body (in the seeds, flowers, bark, or leaves) and are also ..... Click the link for more information. and a type of resin resin, any of a class of amorphous solids or semisolids. Resins are found in nature and are chiefly of vegetable origin. They are typically light yellow to dark brown in color; tasteless; odorless or faintly aromatic; translucent or transparent; brittle, fracturing ..... Click the link for more information. that is called rosin rosin or colophony, hard, brittle, translucent resin , obtained as a solid residue from crude turpentine . Usually pale yellow or amber, its color may vary from brownish-black to transparent depending on the nature of the source of the crude ..... Click the link for more information. . The essential oil (oil of turpentine) can be separated from the rosin by steam distillation. Commercial turpentine, or turps, is this oil of turpentine. When pure, it is a colorless, transparent, oily liquid with a penetrating odor and a characteristic taste. It contains a large proportion of pinene, a compound from which camphor is manufactured. Turpentine is obtained in large amounts from several species of pines of the SE United States; its physical properties, e.g., boiling point, depend on its source. It is used chiefly as a solvent and drying agent in paints and varnishes. turpentineAny resinous exudate or extract from conifers, especially pines; now also commonly a term for its volatile fraction, oil (or spirits) of turpentine. Semifluid mixtures of organic compounds consisting of resins dissolved in a volatile oil, turpentines can be distilled (see distillation) into the volatile oil of turpentine and the nonvolatile rosin. The oil, a mixture of monoterpenes (see isoprenoid), chiefly pinene, is a colourless, odorous, flammable liquid that does not mix with water but is a good solvent for many substances. Oil of turpentine is favoured over petroleum solvents as an oil-paint thinner, varnish solvent, and brush cleaner. Its chief use is now as a raw material for resins, insecticides, oil additives, and synthetic pine oil and camphor and as a solvent. |
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If the turpentine don't work, I'll try French chalk, magneshy, and warm suds. He soon spied them out, and putting down the candle, deliberately proceeded to cast them into the fire: palette, paints, bladders, pencils, brushes, varnish: I saw them all consumed: the palette-knives snapped in two, the oil and turpentine sent hissing and roaring up the chimney. When all the keeper's goods were flung upon this costly pile, to the last fragment, they smeared it with the pitch, and tar, and rosin they had brought, and sprinkled it with turpentine. |
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turpentine
