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Silica gel desiccants are different varieties of silica gel packed in small bags with moisture permeability. The main raw material silica gel is a kind of silica with high microporous structure containing water, non-toxic, tasteless, odorless, stable chemical properties, with strong hygroscopicity, is a kind of highly active adsorption material. It is usually prepared by reaction of sodium silicate and sulfuric acid and by a series of post-treatment processes such as aging and acid bubble. Silica gel belongs to amorphous material, its shape is transparent and irregular sphere, its chemical formula is mSiO2·nH2O. Therefore, it is widely used to control the relative humidity of the environment in the storage and transportation of instruments, meters, equipment and instruments, leather, bags, shoes, textiles, food, medicines, etc., to reduce and slow down the dampness, mildew and corrosion of articles.
● silica gel has a strong adsorption capacity, silica gel itself is a neutral material, in addition to strong base, strong acid reaction under certain conditions, will not react with any other substances. At the same time, silica gel is also through the United States FDA certification, can be used directly with drugs, food drying agent.
● silica gel desiccant can be used as a general packaging desiccant. Such as bags, clothing, shoes, hats, leather, etc., to prevent the goods in the process of storage or transportation due to dampness and affect the quality of products.
● silica gel desiccant suitable hygroscopic environment for room temperature (20~32℃), high temperature (60~90℃), it can reduce the relative humidity of the environment to about 40%, so the application of desiccant is very wide.
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