| Wacker HDK N20 |
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| Fumed silica |
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| 112945-52-5 |
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WACKER HDK N 20 Fumed Silica is a hydrophilic fumed silica produced by flame hydrolysis of volatile silcon compounds. WACKER HDK N 20 is pure, x-ray amorphous silicon dioxide (SiO2).
* Thickener, thixotropic agent and antisettling agent for liquid systems, polyester, coatings, paints, lacquers and varnishes, PVC-plastisols, pharmaceutical and cosmetic products, fluids and
lubricants, and tile adhesives
* Reinforcing filler in silicone rubber
* Free-flow agent for powders, pigments and salts |
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Surface area, m2/g : 200¡¾30
SiO2-Content, % (Dried for 2 hr/1000'C): >99.8
Tamped Bulk density, g/l : ca. 40
Moisture, %, 2 hr/105'C (Material when leaving the plant site): <1.5
Loss on Ignition, %, 2 hr/1000'C (Dried for 2 hr/105'C): <1.5
pH-Value(4% dispersion in water) : 3.6 - 4.3
Sieve Residue, %, >40micronm : <0.04
HCI-Content, % (Dried for 2 hr/1000'C): <0.02
Al2O3-Content, % (Dried for 2 hr/1000'C): <0.05
Fe2O3-Content, % (Dried for 2 hr/1000'C): <0.005
TiO2-Content, % (Dried for 2 hr/1000'C): <0.003 |
| Industrial field |
additive, adhesive & sealant, cosmetics, dye & pigment, paint & coating, paper & pulp additive, pharmaceutical, plastic, polymer, resin, monomer, rubber & additives |
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