Chinese Manufacturers Supply High Quality Micro Silica Fume
- $0.145 / >=1000 kilograms
- 1000 kilograms
- Shandong Gaotang Kelin Environmental Protection Technology Co., Ltd.
- Shandong, China
- Mr Zimin Liu
Product Detail
port: | Qingdao, Tianjin, Shanghai | Fe2O3 content (%): | maximum. 0.50% |
Free Si (%): | <0.4 per month | Package preview: | |
CaO content (%): | maximum. 0.50% | grade: | Silica Superfine-400 |
Al2O3 content (%): | maximum. 0.70% | chlorine(%): | <0.3 |
place of origin; place of origin: | Shandong China | application: | refractory |
MgO content (%): | maximum. 0.50% | So3 (%): | <3.0 |
brand: | colin | Silica content (%): | min92% |
Free calcium oxide (%): | <1.0 | Moisture (%): | <1.0 |
P2O5 content (%): | 0.50% max | payment terms: | L/C, Western Union, T/T, MoneyGram |
Supply capacity: | 500,000 tons per month | Packaging Details: | Borida Microsilica Iis dry-process microsilica powder is available in two 550kg Jumbo bags Main form: 25kg paper bag or plastic bag Chemical composition and Undenified-Grade SiO2>92%, with (2) Densified MicroSilica-92D Packaging is: Physical properties are usually typical Bulk 200-1000kg Jumboo bag tested and Borida 350kg/m3 25kg paper bag or plastic bag Laboratory international dense grade SiO2>92%, typical special packaging |
Types of: | Silica fume |
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Product Description
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Silica fume, also known as silicon powder or micro silica, is a by-product of the production of silicon metal or ferrosilicon alloy. Silicon metal and alloys are produced in electric furnaces. The raw materials are quartz, coal and wood chips. The smoke generated by the furnace operation is collected and sold as silicon powder. Silicon powder is mainly composed of amorphous (amorphous) silicon dioxide (SiO2), with an average particle size of 0.15~0.20um and a specific surface area of 15000~20000m2/kg. Has extremely strong surface activity.
Product parameters:
Chemical and Physical Analysis | ASTM C1240-11 | EN 13263:2005 |
/ | Spec frequency | Spec frequency |
Silica (%) | >92.0 300 tons | >92.0 weekly |
sulphur trioxide(%) | / | <3.0 per week |
chlorine(%) | / | <0.3 per week |
Free calcium oxide (%) | / | <1.0 per week |
Free silicon (%) | / | <0.4 per month |
Alkali (equivalent Na2O %) | Report 300MT | / |
Moisture (%) | <1.0 300 metric tons | / |
Loss on ignition, LOI(%) | <4.0 300 tons | <4.0 per week |
Specific surface area (BET -M2 / grams) | >18 2200MT/3 months | 15-35 months |
Bulk density (kg/m3) | Report 300MT | / |
Pozz.Activity Index(%) - 7 days accelerated curing | >110 2200MT/3 months | / |
Pozz.Activity Index(%) - 28 days accelerated curing | / | >100 per month |
Retained on 45 micron sieve (%) | <10 3 00 metric tons | |
Difference (%) from avg.retained at 45 microns | <2 avg.of last 10 tests | |
Density (kg/m3 ) | Report 300MT |
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