Four common desiccant raw material ingredients and their main characteristics

Desiccant Description Features Absorption rate Application TEMP
Calcium Chloride Desiccant High purity CaCl2 as its main absorption agent Chemical absorption, nontoxic and odorless; High moisture absorption ability up to 700% -5°C — 90°C
Silica Gel SiO2 as the main ingredient, transparent and semi-transparent solid spheres Physical absorption with mild reaction; Chemically stable, relatively high mechanical strength; Granules with dry surface and no significant change in appearance after use; Reusable after oven drying. 10% —27% below 35°C
Clay Also called montmorillonite desiccant, in powder or ball form Additive-free, non-toxic, environmentally friendly 15% —23% below 50°C
Molecular Sieve Crystalline aluminosilicate with homogeneous aperture and relatively large surface areas and selectively absorption Recyclable, non-toxic, non-corrosive, chemically stable; Sensitive to environmental humidity, absorbs moisture even under ultralow humidity 10% — 25% can be used at high temperature


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