silica fumed silica silicon dioxide
1.Factory provide directly
2.Prompt delivery
3.High quality with competitive price 4.Free samples
Our silica specification as follows:
Type |
YR-140C |
YR-160C |
YR-180C |
Appearance |
Super-fine Powder |
||
BET specific surface area m2/g |
130-150 |
150-170 |
170-190 |
Silica(dry basis) % |
≥ 96 |
||
Heating loss (105°C) % |
4.0-8.0 |
||
Loss on ignition (1000±25°C)% |
≤7.0 |
||
PH-value(10%aqueous solution) |
5.0-8.0 |
||
DBP Oil Absorption Value cm3/g |
2.0-3.5 |
||
45um sieve Residue % |
≤ 0.5 |
||
Soluble salt (Na2SO4)% |
≤ 1.5 |
||
Cu mg/kg |
≤ 30 |
||
Mn mg/kg |
≤ 50 |
||
Fe mg/kg |
≤ 300 |
||
Average grain diameter d50 µm |
12-16 |
Packing: 10 Kg/Bag
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