Birch tar
![Birch bark pitch made in a single pot: The birch bark is heated under airtight conditions, the final product consists of tar and the ashes of the bark.](/Images/godic/202412/24/Birkenpech2836.JPG")
![Modern way of producing birch bark tar in a single pot: The birch bark is heated under airtight conditions, the final product consists of tar and the ashes of the bark.](/Images/godic/202412/24/Birkenpechdestille_Eintopfverfahren2836.JPG")
Birch tar or birch pitch is a substance (liquid when heated) derived from the dry distillation of the bark of the birch tree.
Birch tar
英语百科
| 单词 | Birch tar |
| 释义 |
Birch tar
英语百科
Birch tarBirch tar or birch pitch is a substance (liquid when heated) derived from the dry distillation of the bark of the birch tree. |
| 随便看 |
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