trituration

Trituration is a process in organic chemistry used to purify crude compounds. The process is such, that a crude compound is created (by any means such as reduction, nitration, etc.) and has solid impurities within it. A solvent is chosen in which the desired product is insoluble and the undesirable by-products are very soluble. The crude material is washed with the solvent and filtered away, leaving the purified product in solid form and any impurities in solution.
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La trituration est une opération de broyage par friction, combinant un mouvement de frottement et une forte pression (c'est aussi le travail des molaires lors de la mastication).
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TRITURAZIONE. TRITURAMENTO