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Best Price Silica SiO2 Powder SSA 380 CAS No. 112945-52-5 Hydrophobic Fumed Silica
About fumed silica SiO2
Fumed silica is a nano-scale white powder generated by high temperature hydrolysis of silicon halide in a hydrogen-oxygen flame, commonly known as fumed silica, which is an amorphous silica product with a primary particle size of 7~40nm. The aggregate particle size is about 200-500 nanometers, the specific surface area is 100-400 m2/g, the purity is high, and the SiO2 content is not less than 99.8%. The untreated fumed silica aggregates contain a variety of silanol groups.
Parameters of Fumed silica
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Analysis Result |
Product Standards |
Analysis |
|
Specific surface area(m2/g) |
300±25 |
214 |
|
PH |
3.6-4.5 |
4.16 |
|
Viscosity(mpa.s) |
3000-6500 |
3300 |
|
Loss on drying(%) |
≤2.0 |
0.83 |
|
Ignition loss(%) |
≤2.5 |
0.86 |
|
Sieve residue(%) |
≤0.05 |
0.01 |
|
Apparent density(g/l) |
25-60 |
43 |
|
SiO2,%(m/m) |
≥99.8 |
99.9 |
|
Al2O3 |
≤0.05 |
0.01 |
|
TiO2 |
≤0.03 |
0.01 |
|
Fe2O3 |
≤0.003 |
0.001 |
Dosage of fumed silica
The recommended dosage is 2-5%, which can be determined according to customer requirements.
Packing of fumed silica
10kg/bag
Luoyang Tongrun Nano Technology Co., Ltd. is committed to Fumed Silica, applications of nanotechnology and new material industries, with professional experiencein the nano-technology research and development and the application of materials. As a leading nano-technology development and product applications manufacturer, the Luoyang Tongrun dominates the markets. Tongrun technology provides solutions across the various processes and steps of laboratories and industries. Our professional working team provides the perfect solutions to help increase efficiency in various industries, create value, easy to deal with various challenges.
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Q1: Are you a manufacturer or trading company?
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| Q2: May I get one sample before placing order? Re: Yes, we'd like to provide sample for you. For some items, it is free and you only need pay the shipping cost. When we both cooperate for some times, free sample will be offered. |
| Q3: Which payment is available for your company? Re:There are some payment methods for your option. T/T(USD), Western union, Paypal, Credit card, Alipay or Alibaba trade insurance. You can choose the one which you like. |
| Q4: How and when can I get my goods after payment? Re: For small quantity products, it takes only 1-2 days for delivery by air. And for large quantity, it will take about 1-2 weeks. |
| Q5: Do you have OEM or ODM service? Re: Sure. If needed, we can customize for you. |
| Q6: How can you guarantee the goods you offer is qualified? Re: All the goods are inspected before shipment. If the goods can't come to the quality we promise, you can ask for refund. |
