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Rosin is the resinous constituent of the oleo-resin exuded by various species of pine, known in commerce as crude turpentine. The separation of the oleo-resin into the essential oil (spirit of turpentine) and common rosin is accomplished by distillation in large copper stills. The essential oil is carried off at a temperature of between 100 °C ...
Turpentine may alternatively be extracted from destructive distillation of pine wood, [3] such as shredded pine stumps, roots, and slash, using the light end of the heavy naphtha fraction (boiling between 90 and 115 °C or 195 and 240 °F) from a crude oil refinery. Such turpentine is called wood turpentine.
The physician Cadwallader Colden (1688–1776) extolled the virtues of pine resin steeped in water. This concoction also was called "tar water". [3] George Berkeley suggested that tar from pine or fir be stirred for three or four minutes with an equal quantity of water and the mixture allowed to stand for 48 hours. At this time, the separated ...
Pine tar is a form of wood tar produced by the high temperature carbonization of pine wood in anoxic conditions (dry distillation or destructive distillation). The wood is rapidly decomposed by applying heat and pressure in a closed container; the primary resulting products are charcoal and pine tar .
Natural resin is a complex composition of components such as resin acids, lignans and coumaric acid.The levels of these components are dependent on what type of coniferous tree resin it is and when it is collected i.e. fresh physiological resin or matured resin collected from trunk of the tree [4] In vitro studies have shown that natural resin is strongly antimicrobial against a broad spectrum ...
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The word resin comes from French resine, from Latin resina "resin", which either derives from or is a cognate of the Greek ῥητίνη rhētínē "resin of the pine", of unknown earlier origin, though probably non-Indo-European. [10] [11]
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