Silicone can be used as a desiccant and can be reused.
Silica gel is a porous material of different particle size, which is suitably dehydrated from silicate gel mSiO2·nH2O. With an open porous structure, the specific surface area (surface area per unit mass) is large and can adsorb many substances. It is a good desiccant, adsorbent and catalyst carrier. When used as a desiccant, it is blue before absorbing water. After changing to red, the degree of water absorption can be seen from the change of color.
Silica gel is also widely used in the recovery of steam, the refinement of petroleum, and the preparation of catalysts.
Inorganic silica gel used as a desiccant can be detailed to the following aspects
1. It is mainly used for moisture absorption and rust prevention under the confined conditions of equipment, appearance, and equipment.
2. Use with ordinary silica gel desiccant to indicate the degree of moisture absorption of the desiccant and determine the relative humidity of the environment.
3. Silicone can be used to make baby pacifiers and other objects directly touched by the human body because of its food-grade use