1910–1911
Britannica 11th
Encyclopaedia Britannica · 11th edition
TAR, a product of the destructive distillation of organic substances. It is a highly complex material, varying in its composition according to the nature of the body from which it Ls distilled, — different products, moreover, being obtained according to the temperature at which the process of distillation is carried on. As commercial products there are two principal classes of tar in use — (i) wood tar, the product of the special distillation of several varieties of wood, and (2) coal tar (?.».), which is primarily…
- Source status
- OCR text aligned to scanned pages
- Pages
- Vol. 26, pp. 414-414