Can silica desiccant absorb alkaline gas?
Silica dioxide is not used as desiccant, as desiccant is silica gel, silica gel is also called silica gel, the main component is silicic acid, and will react with alkali, so you can absorb alkaline gas, but can not dry alkaline gas.
Silica gel is a kind of high active adsorption material, belonging to the amorphous material, its molecular formula is mSiO2 nH2O; in addition to alkali, hydrofluoric acid does not react with any material, insoluble in water and any solvent, non-toxic, chemically stable.
Yes, an acid desiccant will neutralize reactions when drying alkaline gas, so it is not possible to dry the alkaline gas with an acid desiccant
Silica gel: high adsorption properties, good thermal stability, stable chemical properties, high mechanical strength, etc.. Silica gel according to its size of pore size is divided into: macroporous silica gel, coarse pore silica gel, B type silica gel, pore silica gel and so on.Silica gel and ordinary silica gel desiccant used together, indicating the degree of moisture absorption of desiccant and determine the relative humidity of the environment. As a silica gel used for packaging, it is widely used in precision instruments, leather, clothing, food, medicines and household appliances, etc..
