Silica gel is a gel produced by combining aqueous sodium silicate with sulfuric acid. It is used for natural gas drying, heavy hydrocarbon and water removal, and has different grades available for specific applications. How silica gel desiccants remove moisture from the air Silica gel and calcium chloride have different ways to remove moisture from the surrounding environment. Silica gel does it by adsorption, which means that the water molecules adhere to the surface of the silica gel. The silica gel is a very porous component with a high number of voids that may contain water when needed.
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