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.

Trituration is the process of reducing the particle size of a substance by grinding.