Silica gel desiccant is a physical adsorption desiccant. The main component is silica (SiO2), which is usually prepared by reacting sodium silicate and sulfuric acid, and undergoing a series of post-treatment processes such as aging and acid foam. Silica gel desiccant is insoluble in water and any solvent, non-toxic and tasteless, chemically stable, and does not react with any substance except strong alkali and hydrofluoric acid.
Generally, in the case of a temperature of 30 ° C and a relative humidity of 90%, the moisture absorption rate of the silica gel desiccant is between 25% and 30%. The silica raw materials used by Chunwang will be slightly better than this data.
The most suitable moisture absorption environment for silica gel desiccant is room temperature (20~32 °C) and high temperature (60~90 °C), which can reduce the relative humidity of the environment to about 40%.