For big wide pore silica gel, its appearance is milky particle，with abundant fine porous structure inside, classified as two categories, i.e. spherical item and granular item, this product is mainly used for purification of water and recovery of heavy metal, purification and separation of the effective ingredients of herb, adsorption and refining of macromolecule protein from the fermented product, also used as beer stabilizing reagent，catalyst and the carrier of catalyst, its key technological specifications as follows:
Item |
specifications |
TypeⅠ |
Type Ⅱ |
Pore diameter Å |
100-200 |
200-600 |
Pore volume ml/g |
1.05-1.35 |
1.2-1.8 |
Specific surface area m2/g≥ |
250-350 |
120-300 |
Bulk density g/l ≥ |
300-400 |
200-330 |
Loss on heating % ≤ |
5 |
5 |
PH |
3-5 |
3-5 |
packing |
20kg/bag 500kg/bag, etc. |
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