Turpentine

Turpentine is a fluid obtained by distillation from resin obtained from trees, mainly various species of pine (Pinus). It is composed of terpenes, mainly the monoterpenes alpha-pinene and beta-pinene. It is also known colloquially as turps.

Important pines for turpentine production include:

• Maritime Pine Pinus pinaster
• Aleppo Pine Pinus halepensis
• Masson's Pine Pinus massoniana
• Sumatran Pine Pinus merkusii
• Longleaf Pine Pinus palustris
• Loblolly Pine Pinus taeda
• Ponderosa Pine Pinus ponderosa

Medicinal uses

Turpentine has been used medically since ancient times.

• Applied externally to the affected areas, turpentine is a highly effective treatment for lice.

• Turpentine can be mixed with animal fat as a primitive chest rub for nasal and throat complaints. Some modern chest rubs still contain some turpentine (e.g., Vick's Vaporub).

• Internal administration of turpentine is no longer common today, though it was once the preferred means of treating intestinal parasites.

Industrial uses

Turpentine is used as a solvent, especially for thinning oil-based paints, producing varnishes, and as a raw material for the chemical industry. Its industrial uses have largely been replaced by the much cheaper turpentine substitute distilled from crude oil. After turpentine is distilled, the residue remaining is rosin.

External links

• Gum naval stores: Turpentine and rosin from pine resin (http://www.fao.org/docrep/V6460E/v6460e00.htm)

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