Silica Powder
Specification for silicabrick powder：
Silica powder is producing from white natural silica stone,it is refined through manmade selecting,ex-ion water dispose,grinding,filtrating drying and sieving etc.For its high content,pure white color,stable physical and chemical properties and reasonable controllable partical size distribution it is widely used as material for epoxy potting compound,epoxy mould compound of electronic and electrical industries and engineering plastics,epoxy mould compound of large circuit integration,semiconductor,silicon rubber, precision ceramic and casting,paint an ink etc industries.
Chemical Analysis And Partica Size Distribution |
Specificatiom |
QG300 |
QG400 |
QG500 |
SP10 |
SP5 |
SP2 |
Chemical Analysis |
SiO2(%) |
99.80 |
99.80 |
99.80 |
99.80 |
99.80 |
99.80 |
Fe2O3 |
0.01 |
0.01 |
0.01 |
0.01 |
0.01 |
0.015 |
Al2O3 |
0.015 |
0.015 |
0.015 |
0.02 |
0.02 |
0.02 |
K2O |
0.005 |
0.005 |
0.005 |
0.008 |
0.008 |
0.008 |
Moisture(%) |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
0.1 |
Loss of lgnition(%) |
0.15 |
0.15 |
0.15 |
0.15 |
0.15 |
0.15 |
Water extraction liquid |
Na+(ppm) |
<2 |
<2 |
<2 |
<3 |
<3 |
<3 |
Cl-(ppm) |
<5 |
<5 |
<5 |
<5 |
<5 |
<5 |
Ec(μs/cm) |
<5 |
<5 |
<5 |
<5 |
<10 |
<10 |
PH |
5.5-7.5 |
D50(μm) |
21-24 |
17-20 |
15-17 |
9-12 |
3-5 |
1.5-2.5 |
All data of obove products are just desciption of material.You can suggest your demand refering to these information,then we will offer you more information about material of detailed specification. |
