| 31. | The ability of lignosulfonates to reduce the viscosity of mineral slurries is used to advantage in quebracho ( a tropical tree ).
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| 32. | He participated in the Revolution of Quebracho, wrote in the newspaper El D�a and was Interior Minister from 1903 to 1904.
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| 33. | Ordinary or warm soluble quebracho ( also known as insoluble quebracho ) is the natural extract obtained directly from the quebracho wood.
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| 34. | Ordinary or warm soluble quebracho ( also known as insoluble quebracho ) is the natural extract obtained directly from the quebracho wood.
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| 35. | Ordinary or warm soluble quebracho ( also known as insoluble quebracho ) is the natural extract obtained directly from the quebracho wood.
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| 36. | The violence delayed the opening of the trial of the four members of Quebracho, a group known for leading anti-government protests.
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| 37. | Quebracho trees ( " Schinopsis balansae " and " Aspidosperma quebracho-blanco " ) can frequently be found there.
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| 38. | Quebracho trees ( " Schinopsis balansae " and " Aspidosperma quebracho-blanco " ) can frequently be found there.
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| 39. | The quebracho tree, from which tannin is extracted, is grown in a region that covers northern Argentina and parts of Bolivia and Paraguay.
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| 40. | Forests of " quebracho colorado chaque�o " ( " Schinopsis balansae " ) were once located in the north of Corrientes.
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