| Title:  Birch Tar Oil, Empyreumatic Additional Names:  Oil white birch;  oleum rusci Literature References:  Obtained by destructive distillation of the bark and wood of Betula alba L., Betulaceae (white birch).  Constit.  Oil turpentine, other isomeric hydrocarbons, various empyreumatic resins, guaiacol, cresol, pyrocatechol, betulin. Properties:  Black, viscid liquid; characteristic odor.  d 0.926-0.955.  Partly sol in alcohol; sol in chloroform, fats, oils. Density:  d 0.926-0.955 Use:  For preserving leather and wood.  |