1. Product Name: Fumed Silica
2.Molecular Formula: SiO2
3.CAS No.: 112945-52-5
4.Vapour Pressure: 32hPa (25¡æ)
5.Relative Density (water=1): 0.22g/cm3
6.Technological Index
Item | Index |
Appearance | White Powder |
Surface Area (m2/g) | SD-151 | SD-612 | SD-615 | SD-132 | SD-139 | SD-152 | SD-620 | SD-630 |
120¡À30 | 140¡À20 | 140¡À20 | 140¡À20 | 110¡À30 | 170¡À30 | 170¡À30 | 330¡À30 |
PH Value in Aqueous Dispersion | ¡Ý 3.7 | 5.0~8.0 | 5.0~8.0 | 6.0~9.0 | 4.0~7.0 | ¡Ý 3.7 | 6.0~9.0 | 6.0~9.0 |
Volatilization Loss (105¡æ) /% ¡Ü | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 | 0.7 |
Ignition Loss /% ¡Ü | 2.5 | 2.0 | 4.0 | 4.0 | 10.0 | 2.5 | 4.0 | 5.0 |
Silicon Dioxide /% ¡Ý | 99.8 | 99.8 | 99.8 | 99.8 | 99.8 | 99.8 | 99.8 | 99.8 |
Tamping Density g/L | 40~60 | 40~60 | 40~60 | 40~60 | 40~60 | 40~60 | 40~60 | 40~60 |
Carbon /% | 0.6~1.2 | 0.7~1.3 | 1.0~1.7 | 2.0~4.0 | 4.0~7.0 | 0.8~1.6 | 1.5~2.5 | 2.5-4.0 |
Treatment Type | DDS | HMDS | HMDS | HMDS | PDMS | DDS | HMDS | HMDS |
7.Application and Usage
It is white, loose, amorphous, non-toxic and non-odorous nonmetal oxide. Due to the nanometer effect, it has excellent properties, such as reinforce, bodying, thixotropy, insulation and others. Therefore, it can be widely used in the rubber, plastic, paint coating, adhesive, seals and other polymer industrial area.
8. Package, Storage and Handling
N.W 10KG/bag.
Keep in a cool, dry, well-ventilated place. Store away from incompatible substances such as oxidizing agents.
