аумақтық тазарту

аумақтық тазарту

A method for purifying solids based on the fact that solutes tend to concentrate in the liquid when a solution is frozen. A solid bar is drawn slowly over a heat source and melted in a narrow band; impurities are carried along in the melted band until the end of the bar is reached.

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Secteur d’activité/Domaine : Chimie
Catégorie : Chimie générale
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