Desiccant Powder

Desiccant is a hygroscopic substance that induces or sustains a state of dryness (desiccation) in its vicinity it is the opposite of a humectants. 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, others are extremely reactive and require specialized handling techniques. Although some desiccants are chemically inert, others are extremely 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