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China factory provide amorphous silicon powder
Amorphous Silicon Powder (scientific name "microsilica," Micro silica or silica powder), in the smelting of ferrosilicon and industrialsilicon, silicon through the flue gas emitted by steam oxidation, the specially designed filter collected the amorphous powder like silica (SiO 2).microsilica average 0.1-0.15 μ m in diameter, the size of several cement average 1.0%. Surface area for the 15-27 m 2 / g, with strong surface activity.
Parameter of Amorphous Silicon Powder
| Main Material | SiO2 |
| State | Non-amorphous Ultrafine (non-crystalline)powder |
| Color | Grey to medium grey powder, white and black powder |
| Buck density-Densified | 500-800kg/m3 |
| Bulk density-Undensified | 200-350 kg/m3 |
| MOQ | Any Quantity meet your requirements |
| Sample Time | 3-5 days if you want to test |
| Certification available | Yes-SGS, ASTM-C1240 etc |
| Packing Detail | 900kg/jumbo bags and 300-500kg/jumbo bags, |
| and 25kg small plastic woven bags, or according to customer's requirements | |
| Production Capacity | 4000 Ton/Tons per month |
| Payment Term | L/C, T/T, D/P, D/A, WESTERN UNION |
Ruowen Amorphous Silicon Powder specifications
| Analysis Object(%) | SF 97 | SF 94 | SF 90 | SF 88 | SF 85 |
| SiO2 (Min.) | 97 | 94 | 90 | 88 | 85 |
| Al2O3 (Max.) | 1 | 1 | 2 | -- | -- |
| Fe2O3 (Max.) | 1 | 1 | 2 | -- | -- |
| CaO+MgO (Max.) | 1 | 1 | 2 | -- | -- |
| K2O+Na2O (Max.) | 1 | 1.5 | 2 | -- | -- |
| C (Max.) | 1 | 2 | 2 | 2.5 | 3 |
| NaOH (Max.) | 1 | 3 | 3 | 4 | 4.5 |
| PH | 4.5~6.5 | 4.5~7.5 | 4.5~7.5 | 4.5~8.5 | 4.5~8.5 |
| Size above 45um (Max.) | 3 | 3 | 5 | 8 | 8 |
| Moisture (Max.) | 15 | ||||
| m2/g (Max.) | 1 | 2 | 2.5 | 3 | 3 |
| Standard for RW Amorphous Silicon Powder Grade 92 | |
| Index items | Standard Value |
| SiO2(Silicon Dioxide) | Min. 92.0% |
| C(Carbon) | max. 2.0% |
| Fe2O3 (Iron Oxide) | Max. 0.50% |
| Al2O3(Aluminium Oxide) | Max. 0.70% |
| CaO(Calcium Oxide) | Max. 0.50% |
| MgO(Magnesium Oxide) | Max. 0.50% |
| K2O(Potassium Oxide) | Max. 0.70% |
| Na2O(Sodium Oxide) | Max. 0.40% |
| Moisture Content(H2O) | Max. 1.5% |
| Loss on Ignition(L.O.I) @ 975°C | Max. 3.0% |
| Percent Retained On 45μm (325 sieve) | Max. 1.5% |
| Bulk Density | 500-700kg/m3 |
| Standard for RW Amorphous Silicon Powder Grade 94 | |
| Analysis/Properties | Value |
| SiO2 (Silicon Dioxide, Amorphous) | min 94% |
| Fe2O3 (Iron Oxide) | Typical 0.19% |
| Al2O3( Aluminium Oxide) | Typical 0.27% |
| CaO ( Calcium Oxide) | Typical 0.26% |
| MgO (Magnesium Oxide) | Typical 0.49% |
| K2O (Potassium Oxide) | Typical 0.50% |
| Na2O (Sodium Oxide) | Typical 0.38% |
| P2O5 (Phosphorus Pentoxide) | Typical 0.26% |
| MnO (Manganese Oxide) | Typical 0.25% |
| TiO2 (Titanium Oxide) | Typical 0.21% |
| Loss on Ignition | Typical 2.88% |
| Coarse Particles >45μm (325mesh) | max 1.2% |
| Bulk Density(as packed) | 500-700kg/m3 |
Our products high meets ASTM1240, SGS , ISO9001, tc stardards.
High properties of Amorphous Silicon Powder which improves characteristics of Concrete:
1. Compression strength.
2. Adhesion strength.
3. Wear resistance.
4. Freeze resistance.
5. Chemical durability.
6. Considerably reduces permeability.
7. Resistance to Sulfur and Alkali attacks.
8. Increased Insulation Properties.
It is used best for Insulation properties in Commercial and Residential Infrastructures, such as: Damns, Bridges, Power projects, Transmission Projects, Railways, Canals, Flyovers & Bridges, Highways and Airports, Industrial floorings, Used as admixture for waterproofing, etc.
It is suggested that even multistory buildings and high end complex’s including heavy infrastructures can use silica fume.
Advantages of Amorphous Silicon Powder in concrete:
Very low permeability to chloride and water intrusion.
Extremely high electrical resistivity( 20 to 100 times greater than ordinary Concrete).
Increased abrasion resistance on decks, floors, highways and marine structures, Superior resistance to chemical attack from chlorides nitrates and sulphates. Compressive strengths up to 20000 psi ( 140Mpa ). High flexural strengths(14 Mpa @ 28 days) for airport pavements.
High early strengths for fast track construction projects and precast applications, Highway bridges, parking decks, marine structures and bridge deck overlays are subject to constant deterioration caused by rebar corrosion current, abrasion, chemical attack.
Silica fume will protect concrete against deicing salts, seawater, road traffic and freeze/thaw cycles. Rebar corrosion activity and concrete deterioration are virtually eliminated, which minimizes maintenance expenses.
Amorphous Silicon Powder in Refractory
1)The micro silica is as a raw material, commonly used in the refractory industry.
It plays an important role to improve monolithic refractories.
2)Microsilica is filled in those gaps of which in the traditional refractories.
Thus, it increases the bulk density and lowers the porosity, so that intensity can be
increased abviously.
3)Micro silica contains strong activity to form colloidal particles in the water, and adding suitable dispersant to enhance liquidity, thereby improving performance casting.
4)Microsilica is easy to form -Si-OH in the water and has strong hydrophilicity and
activity. It can enhance the cohesion of refractories, in the meantime, it also improves greatly the high temperature properties and extends the life of refractory products.
Storage and shelf life:
Shelf life when stored in dry warehouse conditions above 2°C is unlimited.
Global supply:
We are specialized in producing and selling silica fume for many years, with customers of Saudi Arabia, Qatar, Kuwait, Japan, Brazil, India, UAE, Finland, Indonesia, Philippines, and so on.
Luoyang Ruowen Trading Co., Ltd is professional in exploiting, producing and selling micro-silica (silica fume). We built up our own producing and processing factories in Anhui, Qinghai and Yunnan Province, and have 4000 tons production in one month. We provide high quality product with low price.
Mobile: 86-15896560729
Phone: 86-0379-60856150
FAX: 86-0379-62188239
Send Inquiry to This Supplier
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