High purity, synthetic, hydrophilic amorphous silica. Used as a thickening and thixotropic agent.
Details
Common names
Pyrogenic Silica - Fumed Silica
Applications
Industry
Producer
Supplier
Chemical Composition
Fumed silica
Advantages
- Can be wetted by water
Other Applications
coatings and paints
adhesives
printing inks
cosmetics
Technical data
Quantity | Value | Unit | Comment |
---|---|---|---|
Appearance Properties | |||
Sieve residue | 0.04 | acc. to Mocker > 40 μm | |
Refractive index | 1.46 | ||
Physical Properties | |||
Density | 2.2 | g/ml | |
Surface Area | 170 - 230 | m²/g | |
SiO2 | >99.8 | % | |
pH | 3.8 - 4.3 | ||
Thermal Properties | |||
Loss on ignition | <2 | % | |
Chemical Properties | |||
Loss on drying | <1.5 | % | (2 h at 105°C) |
Dispersibility | |||
Electrical Properties | |||
Electrical Resistivity | <10^13 | ohm-cm |
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