DESCRIPTION

Birch Tar Oil, Rectified occurs as a clear, dark brown liquid with a strong leather odor. It is the pyroligneous oil obtained by dry distillation of the bark and the wood of Betula pendula Roth and related species of Betula (Fam. Betulaceae) and rectified by steam distillation. It is soluble in most fixed oils, but it is insoluble in glycerin, in mineral oil, and in propylene glycol.