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Sublimation apparatus



  Sublimation apparatus is a piece of laboratory glassware used in the technique of sublimation usually used by chemists to purify compounds. Typically a solid is placed in a vessel which is then heated under vacuum. Under this reduced pressure the solid volatilizes and condenses as a purified compound on a cooled surface, leaving the non-volatile residue impurities behind. This cooled surface often take the form of a cold finger. Once heating ceases and the vacuum is released, the sublimed compound can be collected from the cooled surface.

 
This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Sublimation_apparatus". A list of authors is available in Wikipedia.
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