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Characteristics
 Transp arent or translucent glass-like pellet or lump
Average pore diameter: 2.0-3.0nm
surface area: 650-800m2/g
Pore volume: 0.35-0.45ml/g.
Specific heat : 0.92 KJ/kg．℃.
Thermal conductivity:0.63 KJ/m．hr．℃.
 Applications
Mainly used for drying and moisture proof, may also be used as catalyst carriers, adsorbents, separators and variable-pressure adsorbents, etc.
Technical Specifications
Item |
Specifications |
Typical values |
Superior class |
First class |
Qualified class |
Adsorption
Capacity |
RH=20%，% ≥ |
8.0 |
7.0 |
6.0 |
11.2 |
RH=50%，% ≥ |
20.0 |
19.0 |
18.0 |
29.2 |
RH=90%，% ≥ |
30.0 |
29.0 |
28.0 |
37.6 |
Loss on heating，% ≤ |
2.0 |
4.0 |
6.0 |
1.0 |
pH value |
4-8 |
-- |
-- |
4 |
Specific resistance, Ω.cm ≥ |
3000 |
-- |
-- |
5630 |
Silica,% ≥ |
98 |
-- |
-- |
98.5 |
Qualified ratio of spherical granules,% ≥ |
82 |
-- |
-- |
90 |
Size |
* |
* |
* |
2-5mm |
Bulk density, g/L |
* |
* |
* |
784 |
Note: qualified ratio of spherical granules is only applicable to fine-pored silica gel. |
Size：
0.5-1.5mm
0.5-1mm
2-4mm
2-5mm
4-8mm
Packing：
25 kg per bag.
Note：
The moisture content, packing and size may be customized per your specific requirements
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