Fractional crystallization (chemistry)
In chemistry, fractional crystallization is a method of refining substances based on differences in solubility. It fractionates via differences in crystallization (forming of crystals). If a mixture of two or more substances in solution is allowed to crystallize, for example by allowing the temperature of the solution to decrease, the precipitate will contain more of the least soluble substance. The proportion of components in the precipitate will depend on their solubility products. If the solubility products are very similar, a cascade process will be needed to effectuate a complete separation. This technique is often used in chemical engineering
See also
- Crystal
- Crystal structure
- Crystallite
- Crystallization and engineering aspects
- Fractional freezing
- Laser-heated pedestal growth
- Recrystallization (chemistry)
- Seed crystal
- Single crystal
- Pumpable ice technology
References
This article is issued from Wikipedia - version of the 8/28/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.