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From Wikipedia, the free encyclopedia

Birch-tar or birch-pitch is a liquid derived from the dry distillation of the wood of the birch. It is therefore pyroligneous.

Birch-tar was first used widely as an adhesive in the late Paleolithic or early Mesolithic era. It has also been used as a disinfectant, in leather dressing, and in medicine.

It is compounded of guaiacol, phenols, cresol, xylenol, and creosol.

Category:Chemistry {{chemistry-stub}}

(1968-04-17) April 17, 1968 (age 56)