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fractional crystallization

noun
1.
(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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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fractional crystallization in Science
fractional crystallization
  (frāk'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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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