Silica gel is the most widely used type of desiccant, a transparent, spherical, glass-like structure based on silicon dioxide (SiO₂) with high moisture retention capacity.
It has a high surface area thanks to its micropores.
It is widely used to dehumidify air. Available in various particle sizes and with a variety of application methods, it can be safely used to achieve high dryness in any area where humidity is undesirable.
Silica gel is available in transparent, blue, and orange varieties.
Silicagel Properties
- It is the most widely used desiccant with its high moisture adsorption capacity.
- Thanks to its inert structure, it does not react with any materials or chemicals.
- It does not cause dusting and can be used cleanly and safely.
- It quickly prevents moisture condensation and wetting, even at high temperatures.
Silicagel Application Areas
- In oil-immersed transformers.
- In drying columns.
- In any environment where moisture is not desired.
- In the protection of electronic materials.
- In the storage and transportation of moisture-sensitive materials.
- In many sectors such as textiles, pharmaceuticals, metal, machinery, and automotive.
| Item | Unit | Specifications | |
|---|---|---|---|
| Spherical | Lumpy | ||
| Adsorption capacity @ T:25℃, 48h | RH=20%, %≥ | 8 | 8 |
| RH=40%, %≥ | 19 | 19 | |
| RH=80%, %≥ | 32 | 30 | |
| SiO2 | %, ≥ | 98 | 98 |
| Pore diameter | Å | 20–30 | 20–30 |
| Bulk density | g/L, ≥ | 720 | 670 |
| Loss on heating | %, ≤ | 2.0/5.0 | 2.0/5.0 |
| Qualified size ratio | %, ≥ | 98 | 95 |
| Size | mm | 0.5–1.5 / 1–3 / 2–4 / 3–5 / 2–5 / 4–8 | 0.3–1 / 0.5–1.5 / 0.5–2 / 1–3 / 2–5 / 4–8 |
| Packing | — | 25kg/bag | |