Spherical Silica Powder
SS-D-3
Characteristic
- The spherical silica is produced by silica being belted in very high temperature flame.
- Spherical silica has characters of high purity, low specific surface, good fluidity, low thermal stress etc.
Applications
It is widely used in the fields of EMC, high-tech electronic materials, high grade paints, etc.
Typical Physical Data
| Items |
Unit |
Typical value |
Instrument or Method |
| Sieve method |
+45µm |
% |
0.0026 |
Wet Sieving |
| D50 |
µm |
3.76 |
Laser Analyzer |
| Laser method |
D100 |
µm |
9.84 |
| Specific Surface Area |
m2/g |
1.4 |
Nitrogen Adsorption Method |
| Magnetic material |
ppm |
1.5 |
Magnetic bar recovery method |
Typical Chemical Data
| Items |
Unit |
Typical value |
Instrument or Method |
| Chemical Composition |
SiO2 |
% |
99.70 |
Weight Method |
| Fe2O3 |
ppm |
60 |
Spectrophotometer |
| Moisture |
% |
0.04 |
Weight Method |
| Whiteness |
/ |
94.5 |
Whiteness Meter |
| Extraction Water |
Ec |
µs∕cm |
3.5 |
Conductivity Meter |
| Na+ |
ppm |
0.75 |
AAS |
| Cl- |
ppm |
0.19 |
Automatic Potential Titrator |
| pH |
/ |
5.29 |
PH Meter |