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A desiccant is a hygroscopic substance that induces or sustains a state of dryness (desiccation) in its vicinity.
Commonly encountered pre-packaged desiccants are solids that absorb water.
Desiccants for specialized purposes may be in forms other than solid, and may work through, other principles,such as chemical bonding of water molecules.
They are commonly encountered in foods to retain crispness.Industrially, desiccants are widely used to control the level of water in gas streams

Although some desiccants are chemically inert, many are reactive and require specialized handling techniques.
The most common desiccant is silica, an otherwise inert, nontoxic, water-insoluble white solid.
Tens of thousands of tons are produced annually for this purpose.
Other common desiccants include activated charcoal, calcium sulfate , calcium chloride, and molecular sieves (typically, zeolites). 

The performance of any desiccant varies with temperature and both relative humidity and absolute humidity.To some extent, desiccant performance can be precisely described, but most commonly,the final choice of which desiccant best suits a given situation,How much of it to use, and in what form, is made based on testing and practical experience.

Types of desiccants

Performance efficiency

 
Desiccant World, Kibbutz Shefayim 60990 , Israe Te - 972-5260-33315 , Email - info@brizmangroup.com 
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