Silica gel, white powder with a very high purity of approx. 99.5% SiO2 (dry basis) and a large mean pore diameter of approx. 100 Å. SG-82 wide porous, white can be reactivated without significantly impairing the efficiency. It is therefore very economical, easy to dispose and without any known adverse effects on the environment.
Formula:SiO2. n (H2O) (无定形二氧化硅)
CAS-No.7631-86-9
Physical and chemical
Moisture loss (140 °C 4h) Max. 5%
Characteristics
Bulk density 350 – 450 g/l
Pore volume 0.75 – 1.0 ml/g
Grain size
38– 75µm
75– 150µm
125 – 425 µm
Other special gradings on request
Applications
Due to its special pore structure SG-82 wide porous, white is applied for many technical processes:
Catalyst and catalyst carrier in varied chemical and
Petro-chemical operations
Drug purification and separation.Chromatography
Petrol refining
Dehydration and purification of liquids
The temperature at reactivation should not exceed 180 °C.
Packing
Airtight in 20 kg cartons,bags with PE-Inliner,Airtight in 500 kg bulk bags with PE-Inliner.
Handling
SG-82 must always be kept in airtight containers to avoid pre-adsorption with water vapour. Face masks should be used at continual exposure to extensive dusting.
Note
Any details of application possibilities do not free the purchaser from
he obligation of performing his own tests on the material supplied by the seller, in order to determine their suitability for the intended rocesses and purposes. Application, use and processing of the material cannot be controlled by the seller and are thus the sole responsibility of the purchaser.