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Vacuum drying is the mass transfer operation in which the moisture present in a substance, usually a wet solid, is removed by means of creating a vacuum. In chemical processing industries like food processing , pharmacology, agriculture, and textiles, drying is an essential unit operation to remove moisture. [ 1 ]
A vacuum dry box and safety equipment. A vacuum dry box is a piece of safety equipment which can provide an inert, or controlled atmosphere for handling sensitive materials. [1] These devices can commonly be found in the fume hoods of chemistry labs, [2] in facilities handling deadly pathogens, in NASA [3] Moon rock handling facilities and in ...
Dielectric drying (radiofrequency or microwaves being absorbed inside the material) is the focus of intense research nowadays. It may be used to assist air drying or vacuum drying. Researchers have found that microwave finish drying speeds up the otherwise very low drying rate at the end of the classical drying methods.
Drying of solids can be brought about by storing the solid over a drying agent such as phosphorus pentoxide (P 2 O 5) or silica gel, storing in a drying oven/vacuum-drying oven, heating under a high vacuum or in a drying pistol, or to remove trace amounts of water, simply storing the solid in a glove box that has a dry atmosphere.
vacuum oven with oil pump. In chemistry, a vacuum oven is an oven that can also apply a vacuum to its contents. Such devices are useful for removing solvent or dehydrating samples. They are equivalent to Abderhalden's drying pistol in some ways, but vacuum ovens typically can
Laboratory ovens are a common piece of equipment that can be found in electronics, materials processing, forensic, and research laboratories. These ovens generally provide pinpoint temperature control and uniform temperatures throughout the heating process.
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Abderhalden's drying pistol is a piece of laboratory glassware used to free samples from traces of water, or other impurities. It is called a "pistol" because of its resemblance to the firearm. Its use has declined due to modern hotplate technology and vacuum pumps. The apparatus was first described in a book edited by Emil Abderhalden. [1]