4.6

重结晶:固溶体平衡

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重结晶是一种用于从固体化合物中分离杂质的纯化技术。在该技术中,不会发生化学反应。相反的,它会利用其物理性质,特别是在单一温度、不同温度或其他选定条件下所需的化合物和杂质之间的溶解度差异。溶液中各种成分的固溶平衡(溶解度平衡)表现为二元相平衡,其中该成分分布在固相和液相之间。在平衡时,任何单一的成分在…

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