Felcosil 300
Physical Properties
This white powder is an ultra-fine silica dioxide, which is produced through a specific manufacturing process. It has unique solubility properties, being soluble in sodium hydroxide and hydrogen fluoride, yet insoluble in other acids, water, and organic solvents. The exact method of synthesis involves advanced techniques such as vapor deposition, chemical vapor reaction, sol-gel method, or other specialized production processes. The resulting powder exhibits high chemical stability and unique interaction with certain chemicals.
Specifications
| Properties | Units | Target Values (Spec Limits) |
| Appearance | - | White Powder |
| BET Specific Surface Area | m²/g | 260-300 |
|
SiO2 (Dry Basis) |
% | ≥97 |
| DBP Absorption Value |
cm³/g |
3.00-3.20 |
| pH Value in 4% dispersion | - | 6.0-7.0 |
| Soluble Salt (Na2SO4) | % | ≤1.0 |
| Particle Size(D50) | µm | 10-20 |
| Heating Loss at 105 °C | 1.5h wt.% | ≤6.0 |
| Igniting Loss | 1.5h wt.% | ≤7.0 |
Application
Felcosil 300 is a high-performance polymer with high oil absorption, high transparency, and reinforcement properties. It can be used to produce highly transparent rubber products, enhancing their hardness and elasticity while also enhancing their wear resistance and weather resistance.
