Hydrophobic fumed silica Suppliers
hydrophilic fumed silica with a certain surface area spot of two hundred m2/g .The authentic particle dimension can be five- 40 nm. It is a type of substantial purity white colloidal powder.
It is mainly utilized for large-temperature vulcanized silicone rubber, natural and organic silicone defoamer, innovative printing ink, powEPTcoating, PVC resin, unsaturated polyester resin thickening, thixotropic agent, pharmaceutical powder, tabular preparing, cosmetics and many others.
hydrophilic fumed silica Specification
| Specification | CS-one | CS-2 | CS-three | CS-4 | CS-five | CS-6 |
| Certain sunface location(Guess), /g | 150 plusmn15 | two hundred plusmn20 | one hundred sixty | 210 | a hundred and fifteen plusmn15 | 170 plusmn15 |
| pH value in four% dispersion | 3.nine~4.5 | 3.9~4.5 | 7.~8.5 | 7.~eight.5 | 3.7~four.5 | 3.7~four.5 |
| Reduction on drying(2 hrs at a hundred and five ordmC), % | le1.five | le2. | le0.five | le0.5 | le0.seven | le0.7 |
| Loss on ignition(2 hrs at 1000 ordmC based mostly on materials dried for 2 hrs at 105 ordmC), % | le2. | le2. | le4. | le8. | le2.5 | le2.5 |
| Sieve Residue(45 mum), mg/kg | le250 | le250 | – | – | – | – |
| Silica Content material(Based mostly on ignited material), % | ge99.8 | ge99.8 | ge99.eight | ge99.8 | ge99.8 | ge99.eight |
| EPTmped Density(Dependent on content dried at one zero five ordmC for 2 several hours), g/dm sup2 | forty~sixty | 40~60 | forty~60 | forty~60 | 40~60 | 40~sixty |
| Carbon Content (Based mostly on substance dried at a hundred and five ordmC for 2 hrs), % | – | – | 2.five~four. | three.5~six.5 | .six~1.2 | .eight~1.6 |
| Al2O3 mass fraction mg/kg | 400 | four hundred | four hundred | four hundred | 400 | 400 |
| TiO2 mass fraction mg/kg | two hundred | two hundred | two hundred | 200 | 200 | 200 |
| Fe2o3 mass portion mg/kg | thirty | thirty | thirty | 30 | thirty | 30 |
