Quebracho

Name:
Quebracho
Detailed information:

Properties:

A wood-derived tannin, the most important tanning agent used in the American leather industry. Combustible.

Derivation:

From Aspidosperma quebracho and Quebracho lorentzi, imported as logs from Argentina.

Grade:

Liquid: 35–37% tannin. Solid: 65% tannin.

Use:

Vegetable tanning, retanning of chrome-tanned upper leathers, dyeing, ore flotation, oil-well drilling fluids, flavoring.