Desiccant is a kind of adsorbent with strong adsorption capacity. It is fully exposed to the air (80%-90% relative humidity and 25% temperature). It completely absorbs 35%-39% moisture in 7 hours. Silica gel desiccant is a substance that is formed by chemically reacting sodium sulphate artificially—silicon dioxide. This artificially synthesized chemical has the characteristics of a porous inner structure and an irregular granular outer structure. This network of capillary pores formed between such internal molecules can form so-called capillary absorption and suspicion, which can effectively absorb the molecules of water, alcohol, hydrocarbons, and other chemicals surrounding it. People take advantage of these physical properties of silica gel to make silica gel desiccants the best absorbers available today.
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