Precipitated silica, a form of synthetic amorphous silicon dioxide, is derived from quartz sand, a crystalline form of silicon dioxide.
The physical properties of precipitated silica can be manipulated during the manufacturing process to deliver products with a wide range of performance-enhancing features engineered for many different end-use applications.
Chemical formula： SiO2.nH2O
CAS： 7631-86-9
Main Application：
Industrial rubber, Silicone rubber, Footwear, Food, Feed, Agricultural and Industrial, Coatings, paints and inks, Adhesives and sealants, Battery separator
Min Order： 1 MT
Purity： 97% min
Appearance： Micro pearl or powder
Place of Origin： China
Capacity： 30000 MT per year
Delivery Time： 15 days
Packing: 20kgs net Kraft paper bag or PP woven bag.20kg or 15kg/ sealed woven bag, or big bag package according to your request
Silica for Feed additive and Pharmaceutical Carrier is highly-purified white particle or powder with favorable fluidity.
It is mainly used in feed additive, vitamin E and other industries.
It is favorable carrier for feed flavor enhancement, mildew-proof agent, antioxidant, allicin, swelling agent, caking inhibitor, premix compound, microelement, vitamin and other products.
Items | WFCY 180P | WFCY 180-1 | WFCY180P-1 |
Appearance | Micro pearl | Powder | Micro pearl |
Heating loss (105°C) % | ≤ 6.5 | ≤ 6.5 | ≤ 6.5 |
Loss on ignition (1000±25°C)% | ≤ 8.5 | ≤ 8.5 | ≤ 8.5 |
DBP Oil Absorption Value DBP cm3/g | 2.4-3.0 | 2.4-3.0 | 1.8-2.5 |
Silica(dry basis) % | ≥ 96 | ≥ 96 | ≥ 96 |
PH-value(10%aqueous solution) | 6.0-7.5 | 6.0-7.5 | 6.0-7.5 |
Heavy metal (Pb) mg/kg | ≤ 30 | ≤ 30 | ≤30 |
As mg/kg | ≤ 3.0 | ≤ 3.0 | ≤ 3.0 |
Cd mg/kg | ≤ 0.5 | ≤ 0.5 | ≤ 0.5 |
Pb mg/kg | ≤ 5 | ≤ 5 | ≤ 5 |
Na2SO4 % | ≤ 4.0 | ≤ 4.0 | ≤ 4.0 |
Average grain diameter d50 µm | 150-250 | 80-150 | 180-450 |
We declared that the above particulars are ture and correct and the quality of product could meet the China national standard.
