1. Silica gel desiccant is a kind of physical adsorption desiccant rather than chemical reaction desiccant, and silica gel is the only desiccant material approved by FDA that can directly contact with food and drug.

Compared with other desiccants, silica gel desiccant is safer in moisture-proof food.

2. Silica gel desiccant is a kind of highly active adsorption material, which is usually prepared by reaction of sodium silicate with sulfuric acid, aging and acid bubble.

Silicic acid is an amorphous substance with the chemical formula of msio2 and nH2O.

It is not suitable for water and any solvent. Silica gel desiccant is a kind of highly active adsorption material, which does not react with any substance except strong alkali and hydrofluoric acid.

3. In addition to the above factors, the silica gel desiccant also has strong hygroscopicity and strong adsorption performance. If the silica gel desiccant is completely immersed in water, it will not melt.

It has the characteristics of non-toxic, tasteless, non-corrosive and pollution-free, and it will not be absorbed by human body even if it is eaten by mistake.

In order to achieve the purpose of dehumidification, silica gel itself has many pores to absorb moisture in the air.

The suitable hygroscopic environment of silica gel desiccant is room temperature (20 ~ 32 ℃) and high temperature (60 ~ 90 ℃). It can reduce the relative humidity of the environment to about 40%, so it is widely used.

4. Transparent or milky white granular solid. It has open porous structure, strong adsorption and can adsorb a variety of substances. It has a wide range of applications.

It is not only used as a special material for aviation, cutting-edge technology and military technology departments

It is also used in various sectors of the national economy, which has been expanded to: construction, electronic and electrical, textile, automobile, machinery, leather and papermaking, chemical and light industry, metal and paint, medicine and medical treatment, etc.