The product is highly-purified white particle or loose powder with favorable fluidity.
It can be used in powdery food to increase the fluidity of powder, or to improve the diffusion ability of dry powder in liquid.
It is mainly used in caking inhibiter, thickener, stabilizer, flavor and spice dryer, etc.
Chemical formula： SiO2.nH2O
CAS： 7631-86-9
Main Application：
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
1. Toothpaste/Oral care
Precipitated silica used as an abrasive agent in toothpastes due its abrasive nature. Low level of abrasion is sufficient for the efficient cleaning/polishing of the teeth. Abrasion is related to the morphology of the material. It also acts as thickening agent in the toothpaste and it also inert in nature.
2. Painting, coatings & ink
3. Plastics
Items | WFCY281 | WFCY 282 | WFCY283 |
Appearance | Super-fine Powder | Super-fine Powder | Micro pearl |
Heating loss (105°C) % | ≤ 5.0 | ≤ 5.0 | ≤ 5.0 |
Loss on ignition (1000±25°C)% | ≤ 8.5 | ≤ 8.5 | ≤ 8.5 |
DBP Oil Absorption Value cm3/g | 1.8-2.8 | 2.8-3.5 | 2.0-3.0 |
Silica(dry basis)% | ≥ 96 | ≥ 96 | ≥ 96 |
PH-value(10%aqueous solution) | 6.0-7.0 | 6.0-7.0 | 6.0-7.0 |
Heavy metal (Pb) mg/kg | ≤ 30 | ≤ 30 | ≤30 |
As mg/kg | ≤ 3.0 | ≤ 3.0 | ≤ 3.0 |
Pb mg/kg | ≤ 5 | ≤ 5 | ≤ 5 |
Na2SO4 % | ≤ 4.0 | ≤ 4.0 | ≤ 4.0 |
Average grain diameter d50 µm | 10-15 | 10-15 | 180-400 |
We declared that the above particulars are ture and correct and the quality of product could meet the China national standard.
