Iota Silicone Oil (Anhui) Co., Ltd
IOTA FINE-SIL4520A precipitated silica for toothpaste is amorphous powder, tasteless, insoluble in water or acid, chemically inert, has good solubility with fluoride toothpaste and other raw materials, structure and particle size of silica can be controlled by production conditions, according to different types of toothpaste, respectively produce 3 types: friction type, mixed type and thickening type.
Main specifications and technical data
IOTA FINE-SIL4520A series has been tested, it is comply with the light industry standard of People's Republic of China QB/T2346-97
|
ITEM |
Friction type |
Mixed type |
Thickening type |
|
SiO2（dried） |
≥95 |
≥98 |
≥98 |
|
Apperance |
White Powder |
White Powder |
White Powder |
|
Whiteness % |
≥93 |
≥98 |
≥98 |
|
PH Vaule (5% water dispersion) |
6.5-8.5 |
6.5-8.5 |
6.5-8.5 |
|
Pass 320 Mesh Screen % |
≥98 |
≥99 |
≥99 |
|
Loss on Drying（105℃） |
≤10 |
≤10 |
≤10 |
|
Loss on Ignition（900℃）% |
≤8.3 |
≤6 |
≤6 |
|
Drink Value ml/20g |
17-20 |
30-42 |
45-60 |
|
Na2SO4 content % |
≤0.4 |
≤0.4 |
≤0.4 |
|
NaCl content % |
≤0.1 |
≤0.1 |
≤0.1 |
|
Sulfide Content |
None |
None |
None |
|
Heavy Metals(Pb) Content |
≤20 |
≤20 |
≤20 |
|
As Content mg/kg |
≤2 |
≤2 |
≤2 |
|
Bacilli cfu/g |
≤200 |
≤200 |
≤200 |
Package
White kraft paper bag, 10KG/Bag
