Precipitated Silicon Dioxide CAS No.: 7631-86-9 as White Powder Used For Coating Industry
Description
The production of precipitated silica starts with the reaction of an alkaline silicate solution with a mineral acid. Sulfuric acid and sodium silicatesolutions are added simultaneously with agitation to water. Precipitation is carried out under alkaline conditions. The choice of agitation, duration of precipitation, the addition rate of reactants, their temperature and concentration, and pH can vary the properties of the silica.
Characters
1, Excellent gloss and viscosity stability.
2, Consistent gloss over varying coating weights.
3, Greater flexibility when you add the silica.
4, Better weathering.
Chemical Data
| H-300 | HF-617 |
| Content of sio2(dry basis) %, | ≥98.5 | ≥98.5 |
| Porosity ml/g | 1.2-1.4 | 1.2-1.4 |
| Oil absorption, g/100g , g/100g | 270-310 | 270-320 |
| Particle Size, um(Malvent,D50) | 4.5-5.5 | 6-7 |
| Loss on drying(105℃,2Hrs) | ≤5.0 | ≤5.0 |
| Ignition loss(1000℃,2Hrs) | ≤6.0 | ≤6.0 |
| Whiteness | ≥90.0 | ≥90.0 |
| PH(5% Liquor) | 6-7 | 6-7 |
| Surface Treatment | NONE | NONE |
Application
General Printing Inks, Gravure Printing Ink, Offset Printing Ink, Screen Printing Ink, Printing Packing Material.
Advantage
We are a leader in industrial chemical manufacturing and is continuously innovating and transforming to exceed client expectations and industry standards.
We Developing all range synthetic silica and it's derivatives, aim to the best.
