A concrete oleoresin obtained from Pinus palusiris Miller, and from other species of Pinus (nat. ord. Coniferae).

Habitat

United States; in the Atlantic and Gulf States from Virginia to Texas.

Characters

In yellowish, opaque, tough masses, brittle in the cold, crumbly-crystalline in the interior, of a terebinthinate odor and taste.

Oleum Terebinthinae. Oil Of Turpentine

A volatile oil distilled from Turpentine.

Characters

A thin, colorless liquid, having a characteristic odor and taste, both of which become stronger and less pleasant by age and exposure to the air. Sp. gr., 0.855 to 0.870. Dissolves Resins (the solution forms varnish), Wax, Sulphur, Phosphorus and Iodine.

Solubility

In 3 times its volume of Alcohol, the solution being neutral or slightly acid to litmus paper: also soluble in an equal volume of Glacial Acetic Acid. It is easily oxidized.

Old Oil of Turpentine is an oxidizing agent; it readily absorbs Oxygen, and becomes converted into an Oleoresin. French Oil of Turpentine is laevo-rotatory, some of it comes from Pinus maritima; English Oil of Turpentine, which mostly comes from America, and Russian Oil of Turpentine are dextrorotatory.

Composition

Oil of Turpentine is a mixture of (1) several isomeric hydrocarbons {terpenes), all having the formula C10H16. The chief of them found in the oil are pinene, phellandrene, limonene, and dipentene. They vary in their boiling points and the direction in which they rotate the plane of polarization. The principal terpene in American oil of turpentine is dextro-pinene; the principal terpene in French oil of turpentine is laevopinene. (2) Sesquiterpenes, C15H24. (3) Bornyl acetate. Most turpentine contains from 20 to 30 per cent. of the Oil of Turpentine. Many official volatile oils, viz., Oils of Lavender, Cubeb, Juniper, Peppermint, Chamomile, Caraway, Cloves, contain various terpenes, all isomeric, and all having the formula, C10H16. An oxidation product of terpene is Camphor, C10H16O, which is pharmacopoeial (see Camphor). Sanitas (see p. 518) is another product of the oxidation of a terpene.

Dose, 5 to 30 m.; .30 to 2.00 c.c., or 1/2 to 4 fl. dr.; 2. to 15. c.c. (anthelmintic).

Two parts of mucilage, with thorough trituration, emulsify one part of Oil of Turpentine with sixteen parts of water.

Preparations

1. Oleum Terebinthinae Rectificatum. - Rectified Oil of Turpentine.

Source

Oil of Turpentine, 1; Lime water, 6 volumes. By shaking and distillation.

Characters

A thin, colorless liquid, having the general properties mentioned under Oil of Turpentine. Sp. gr., 0.855 to 0.865.

Dose, 5 to 30 m.; .30 to 2.00 c.c., or 1/2 to 4 fl. dr.; 2. to 15. c.c. (anthelmintic).

2. Linimentum Terebinthinae. - Turpentine Liniment. Resin Cerate, 650; Oil of Turpentine, 350. By melting and mixing.