what is crystallisation and in what way is the process useful to us?
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Crystallization is a natural process which occurs as materials solidify from a liquid, or as they precipitate out of a liquid or gas. This can be caused by a physical change, such as a temperature change, or a chemical change such as acidity.
Crystallization is a process directed by the size and shapes of the molecules involved, and their chemical properties. Crystals can be formed out of a single species of atom, different species of ions, or even large molecules like proteins. Some large molecules have a harder time undergoing the crystallization process, because their internal chemistry is not very symmetrical or interacts with itself to avoid crystallization.
Laboratory Uses of Crystallization
Crystallization is a common and useful laboratory technique. It can be used to purify substances, and can be combined with advanced imaging techniques to understand the nature of the substances crystallized. In laboratory crystallization, a substance can be dissolved into an appropriate solvent. Heat and changes in acidity can help the material dissolve. When these conditions are reversed, the materials within the solution precipitate out at different rates. If the conditions are controlled properly, pure crystals of a desired substance can be obtained.
Crystallization is a process directed by the size and shapes of the molecules involved, and their chemical properties. Crystals can be formed out of a single species of atom, different species of ions, or even large molecules like proteins. Some large molecules have a harder time undergoing the crystallization process, because their internal chemistry is not very symmetrical or interacts with itself to avoid crystallization.
Laboratory Uses of Crystallization
Crystallization is a common and useful laboratory technique. It can be used to purify substances, and can be combined with advanced imaging techniques to understand the nature of the substances crystallized. In laboratory crystallization, a substance can be dissolved into an appropriate solvent. Heat and changes in acidity can help the material dissolve. When these conditions are reversed, the materials within the solution precipitate out at different rates. If the conditions are controlled properly, pure crystals of a desired substance can be obtained.
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