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Appearance: | white powder of amorphous structure. |
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CAS No.: | 112945-52-5 |
Certification: | ISO9000, SGS, BV |
EINECS: | 231-545-4 |
Molecular Formula: | fumed silica,silica fume,silica fume price,fumed silica xysil200,fumed silica 200,hydrophobic fumed silica,aerosil fumed silica,silica fume in pakistan,fumed silica 112945-52-5, |
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Our factory requires a double inspection quality control system in the production process of each product, which is the key guarantee for our quality control, and our products have passed BV, ISO9001 and SGS, quality control can be guaranteed. At the same time, all materials are tested in our laboratory before each shipment to confirm the quality twice.
ENVO CHEMICAL GROUP- With more than 30 years of experience in the chemical industry, it is one of the leading chemical raw material suppliers in China. With a professional scientific research and technical team, with rich experience and technology, we provide our customers with in-depth technical support and a variety of application solutions, ensure quality, save costs, and win unanimous approval from our customers.
Our factory has 7 24-hour production lines, 14 regular production lines and 2 spare production lines, 90% of the orders are shipped within 15-25 days after receiving the payment, any urgent orders can be supported.
Product Name : Fumed Silica
CAS No.: 112945-52-5
Formula: Sio2
EINECS: 231-545-4
Classification: Silicon Dioxide
Grade Standard: Industrial Grade
Kind: Inorganic Silicon
Quality Specification:
TypicalProperties | unit | Hydrophilic | |||
SSA-90 | SSA-150 | SSA-200 | SSA-300 | ||
Specific SurfaceArea(B.E.T.) | m2/g | 90±15 | 150±20 | 200±25 | 300±30 |
pH valuein 4% dispersion | – | 3.7-4.7 | 3.7-4.7 | 3.7-4.7 | 3.7-4.7 |
Drying Loss(2hr. at 105ºC) | wt. % | ≤ 1.0 | ≤ 1.0 | ≤ 1.5 | ≤ 1.5 |
Ignition Loss(2hr. at 1000ºC) | wt. % | ≤ 1.0 | ≤ 1.0 | ≤ 1.5 | ≤ 2.0 |
SiO2-content | wt. % | 99.8% | 99.8% | 99.8% | 99.8% |
Bulk Density | g/l | 50 | 50 | 50 | 50 |
TypicalProperties | unit | Hydrophilic |
Features:
Fumed silica is a fluffy, white powder of amorphous structure. Because of its extremely small particle size and spherical morphology, high surface area, unique surface chemistry and high purity, this product is being used in various industrial applications.The average diameter of the spherical primary particle varies from 7 to 40nm by using different reaction conditions during flame hydrolysis.
Application:
1 Rubber modified, sealant ceramic toughening modification, adhesives, functional fiber additive, plastic modification, paint aging additives;
2 Ceramics, nano ceramic, composite ceramic substrate;
3 Polymer: can increase the thermal stability and anti-aging polymer;
4 Flame retardant materials and coatings, high grinding medium, cosmetic products;
5 In cluster butyl benzene and chlorinated polyethylene adding a small amount of nano SiO2produce color rubber tenacity,elongation, strength, flexural performance and ultraviolet resistance and thermal aging performance and achieve or exceed epdm;
6 In traditional coating adding a small amount of nano silicon oxides, good solve the suspension stability, thixotropy and poor, poor finishr.
Storage
Store in a cool and ventilated warehouse. The storage temperature should not exceed 37 ºC. Keep away from fire and heat source. Keep the container sealed. It should be stored separately from oxidant, reducing agent, halogen, etc., and avoid mixed storage.
Explosion proof lighting and ventilation facilities are adopted.
Packaging:
25kg/bag
Other package sizes are available upon request.
Period of validity
24 months.
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