betulin
Nota de aplicación
A resin extracted from birch bark. It has been identified as a component of archaeological tars found in Austrian sites, demonstrating that the Iron Age tars were made from birch.
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Reiniciar jerarquía
faceta materiales
- materiales (nombre jerárquico)
- .. material
- .... <materiales por composición>
- ...... material orgánico
- ........ resina
- .......... betulin