Properties
Fine porous silica gel, also called Type A silica gel, includes fine porous spherical silica gel and fine porous blochy silica gel. The appearance is transparent or translucent The average pore diameter is 2.0-3.0 mm, surfacearea is 650-800m²/g;the pore volume is 0.35-0.5ml/g; specific heat is 0.92 KJ/kg * ℃ .
Application
Mainly used for drying and moisture proof, may also be used as catalyst carriers, adsorbents, separators and variable pressure adsorbents, etc.
Data sheet:
Item  | parameters  | Specification  | |
Adsorption Capacity (25℃)%  | RH=20% ≥  | 11.0  | 11  | 
RH=50% ≥  | 26.0  | 26  | |
RH=90% ≥  | 36.0  | 36  | |
Loss on drying ,% ≤  | As agreed  | 2  | |
PH  | 4--8  | 90  | |
Specific Resistance, (Ω.cm) ≥  | 4000  | according to the agreement  | |
SiO² % ≥  | 99  | according to the agreement  | |
Qualified ratio of spherical granules % ≥  | 90  | ||
Ratio of particle size % ≥  | 90  | 4-8  | |
Bluk density g/L ≥  | 750  | 4000  | |
Note: Qualified ratio of spherical granules is only applicable to fine porous silica gel.  | |||
Size:0.2-1mm, 0.5-1.5mm, 0.7-1.4mm, 1-2mm, 1-3mm, 2-4mm, 3-5mm, 4-8mm etc.
Packaging:Bags of 25Kg or 850Kg ,or as required.
Notes:Packing and Specification can be customized.