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Micro silica ,also called silica fume or micro silica, is a byproduct of production silicon metal or ferrosilicon alloys. Silicon metal and alloys are produced in electric furnaces.The raw materials are quartz,coal and wood-chips.The smoke that results from furnace operation is collected and sold as silica fume, silica fume consists primarily of amorphous(non-crystalline) silicon dioxide(SiO2),its average granule diameter is 0.15~0.20um,specific surface area is 15000~20000m2/kg,and it has extremely strong surface active.
1. Product Details and Specifications
| Parameters | Standard Value |
|---|---|
| Silicon Dioxide(SiO2) | 92% min |
| Loss on Ignition(L.O.I) | 3 % max |
| Moisture Content(H2O ) | 1.0 % max |
| Percent Retained On 45μm (325 sieve) | 2.0 % max |
| Bulk Density | 350-700kg/m³ |
2. Packaging & Delivery
Packaging Details: 25kgs/bag, 50kgs/bag, 1000kgs/jumbo bags
Delivery Detail: Within 15 days after payment
