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SIOGEL® (silica gel)
The production of silica gel is obtained by reaction of waterglass with mineral acid (e.g. sulphuric acid) in a sol-gel process.
The structure of the silica gel can be adjusted according to the required application.
The following different types of desiccants without humidity indicator are being embraced by the generic product term SIOGEL® :
SIOGEL®white, small porous
SIOGEL®white, small porous (beads)
SIOGEL®white, wide porous
SIOGEL® white, small porous, is a highly active silica gel with a purity degree of approx. 99.5% SiO2, related to anhydrous gel.
The crystals are glassy, translucent, hard, scentless, insoluble and non-conducting.
Micro fine pores are responsible for the porous active surface of SIOGEL® white, small porous, of approx. 800 m2/gg and thus provides a high water vapour adsorption capacity. The crystal structure is providing an intensive contact with the streaming gases at low pressure drop.
Application areas: |
SIOGEL ® white, small porous, is suitable for dehumidification of compressed air, natural gas and industrial gases such as e.g.: |
Butane steam |
Methane |
inert gas |
Ethane |
Methyl chloride |
Nitrogen |
Ethylene |
Propane |
hydrogen |
Carbon oxide |
Oxygen |
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Chemical analysis
Silica |
SiO2 |
approx. 99.50 % |
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Iron |
Fe2O3 |
0.02 % |
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Aluminium |
Al2O3 |
0.10 % |
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Titanium |
TiO2 |
0.02 % |
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Calcium |
CaO |
0.02 % |
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Sodium |
Na2O |
0.27 % |
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Zirconium |
ZrO2 |
0.01 % |
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Trace elements |
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0.33 % |
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The bead form of this particular SIOGEL® type is responsible for low abrasion, high mechanical solidity and a negligible decrease of pressure in packed adsorber beds.
Compared to the other offered SIOGEL® types this silica gel shows a wide pore structure with high pore volume. The wide porous silica gel is able to adsorb 90-100% water of its own weight.
It is being applied for the desiccation of liquids, for the adjustment of specific humidity degrees, aswell as for catalyst carrier in chemistry and petrol chemistry.
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More information:
Product data sheets:
SIOGEL® small porous, white
SIOGEL® small porous, white, pearls
Safety data sheets:
SIOGEL® white
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