| CAS No.: | 7631-86-9 |
|---|---|
| EINECS: | 000-00-0 |
| Classification: | Silicon Dioxide |
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Hydrophobic Fumed Silica IOTA HB4152
HB4152 is hydrophobic fumed silica which is produced by HL4200 after chemical post-treatment with DDS ( Dimethyldichlorosilane ).
|
Specification |
IOTA HB4152 |
|
Specific sunface area(BET), m2/g |
170±15 |
|
pH value in 4% dispersion |
3.7~4.5 |
|
Loss on drying(2 hours at 105ºC), % |
≤0.7 |
|
Loss on ignition(2 hours at 1000ºC based on material dried for 2 hours at 105ºC), % |
≤2.5 |
|
Sieve Residue(45μm), mg/kg |
- |
|
Silica Content(Based on ignited material), % |
≥99.8 |
|
Tamped Density(Based on material dried at 105ºC for 2 hours), g/dm² |
40~60 |
|
Carbon Content (Based on material dried at 105ºC for 2 hours), % |
0.8~1.6 |
Properties
Good hydrohpobicity, thixotropy, thickening, transparency and reinforcement performance
Anti-settling and anti-sagging agent
Free flow aid and anti-caking aid for powders
Thixotropy and reinforcement in RTV silicone sealants, the hydrophobic feature gives RTV silicone sealants a long shelf-life.
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