Precipitated Silica (silica powder)
We are leading producer and supplier of precipitated silica. We have been in the Silica business for many years, and are dedicated to continuous innovation and the development of new technologies. We offer a complete line of specialized silica developed for a wide variety of industries and a broad array of processing requirements. Our business is dedicated to delivering excellent quality and service to every customer. Our silicas mainly serve the following industries:
·Tire
·Rubber
·Silicon Rubber
·Footwear
·Carrier
·Food
·Coatings
·Printings
·Battery Separators
Characteristics
Item code | PS-1 | PS-2 | PS-3 | PS-4 | PS-5 |
SiO2 % | ≥ 93 | ≥ 93 | ≥ 92 | ≥ 92 | ≥ 98 |
Loss on heating % | 4.0-6.0 | 4.0-8.0 | 4.0-8.0 | 4.0-8.0 | 4.0-8.0 |
Loss on ignition % | 7.0 max | 7.0 max | 7.0 max | 7.0 max | 7.0 max |
PH value | 6.0 -7.0 | 6.5 -7.0 | 6.0 -7.0 | 6.0 -7.0 | 6.0 -7.0 |
Specific surface area cm2/g | 190 -210 | 170 -190 | 150 -170 | 170 -190 | 230 -250 |
DBP absorption value cm3/g | 1.8 -3.0 | 2.0 -3.0 | 2.0 -3.0 | 2.0 -3.0 | 3.0 -4.0 |
Iron mg/Kg | 300 max | 200 max | 300 max | 300 max | 300 max |
Sulfate % | 1.0 max | 0.5 max | 0.8 max | 1.5 max | 0.5 max |
