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Nano Silicon Dioxide
Physicochemical Properties
Nano silica is a white powder with good chemical stability. High temperature resistance, large surface area and small particle size. It has good dispersibility, suspension, vibration liquefaction and thixotropy. It has reinforcing and thickening effects. After surface treatment, it has hydrophilicity and lipophilicity.
Specification
|
ITEM |
SPECIFICATION |
RESULT |
|
Appearance |
White powder |
White powder |
|
Purity % |
≥99.8 |
Confirmed |
|
Size D50 nm |
15±5 |
Confirmed |
|
BET m2/g |
250±30 |
Confirmed |
|
PH |
5-7 |
Confirmed |
Silica(Sub-Micoro Spherical Type)
Physicochemical Properties
It is insoluble in water and does not react with water. It is an acidic oxide and does not react with general acids.
Specification
|
ITEM |
SPECIFICATION |
RESULT |
|
Purity % |
≥99.9 |
Confirmed |
|
Size D50 um |
0.5±0.2 |
Confirmed |
|
Sphericity % |
≥95.0 |
Confirmed |
|
Whiteness |
≥92 |
Confirmed |
|
Density cm3 |
>2.2 |
Confirmed |
|
Specific surface m2/g |
8±2 |
Confirmed |
|
Extract PH |
6.5±1 |
Confirmed |
|
Extract Conductivity us/cm |
≤10 |
Confirmed |
