chem the process of separating the components of a solution on the basis of their different solubilities, by means of evaporating the solution until the least soluble component crystallizes out
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Science definitions for fractional crystallization
[ frăk′shə-nəl ]
A process by which a chemical compound is separated into components by crystallization. In fractional crystallization the compound is mixed with a solvent, heated, and then gradually cooled so that, as each of its constituent components crystallizes, it can be removed in its pure form from the solution.
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