| Quebracho bowl |
| QUEBRACHO 4 3/4" diameter x 3" high QUEBRACHO is one of the common names, in Spanish, of at least three similar species of trees that grow in the Gran Chaco region of South America: Schinopsis lorentzii (QUEBRACHO colorado santiagueño), of the family Anacardiaceae; Schinopsis balansae (QUEBRACHO colorado chaqueño), of the same family; Aspidosperma quebracho-blanco ("white QUEBRACHO"), of the family Apocynaceae. These species provide tannin and a very hard, durable timber. QUEBRACHO is sometimes used as a commercial name for the tannin derived from the trees, or their timber. The etymology of the name appears to be Spanish, derived from quiebrahacha, meaning "axe-breaker". The tannic acid, in the form of alkalized salts, was extensively used as a deflocculant in drilling muds in 1940s-1950s, until it was replaced with lignosulfonates. Its red color gave the mixture the name red mud. Item Nr: 10-435 $30.00 |
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