What is the principle of moisture absorption of silica gel desiccant?

Silica gel desiccant is used as an air purifier to remove moisture from the air to control air humidity. It can also be used as a dehumidifier between two parallel sealed glass panels, which can maintain the transparency of the glass. It is also widely used in marine transportation; coarse-porous silica gel desiccant is often used as dehydrating agent, desiccant, catalyst carrier, and can remove organic acid and water in transformer insulating oil. In addition, because of its large pore size, it is also a raw material for further processing of silica gel; while the blue silica gel desiccant is used as an indicator to indicate the degree of water absorption saturation of the desiccant, and is used for drying and absorbing moisture;

Silica gel desiccant is a kind of hydrous silicon dioxide with high microporous structure, non-toxic, tasteless, odorless, stable chemical properties, strong hygroscopicity, and is a highly active adsorption material. Let’s take a look at the moisture absorption principle of silica gel desiccant.

It mainly uses the many fine pores of silica gel itself to absorb moisture in the air, so as to achieve the purpose of dehumidification. The suitable hygroscopic environment is room temperature (20~32°C) and high temperature (60~90°C), which can reduce the relative humidity of the environment to about 40%, so the desiccant has a wide range of applications.

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