Characteristic
Bismuth
oxide is a yellow heavy powder, dissolves in acids but not in water.
The color will turn to salmon pink when heating, melting point 825℃;.
Application
Used for voltage
dependent resistor, zinc oxide arrester, porcelain capacitor, electronic
components as video tube, glass envelop, bismuth series medicine
material, and manufacturing for ceramic pigmentation and special glass.
Technology Specification
items |
1 |
2 |
3 |
color |
light yellow |
light yellow |
light yellow |
grain diameter, μm |
5±1 |
1±0.5 |
4±1 |
grain distribution, μm |
3.5~7.5 |
|
3.5~7.5 |
heating loss,% |
≤0.3 |
≤1.0 |
≤0.3 |
elements |
content(≤,%) |
||
Bi2O3 |
≥99.99 |
≥99.90 |
|
Fe |
0.0005 |
0.003 |
|
Cu |
0.0003 |
0.001 |
|
Pb |
0.0003 |
0.002 |
|
Sb |
0.0005 |
0.001 |
|
As |
0.0005 |
0.001 |
|
Ag |
0.0005 |
0.005 |
|
Cd |
0.0001 |
0.001 |
|
Ni |
0.0005 |
0.001 |
|
Mg |
0.0005 |
0.001 |
|
Ca |
0.001 |
0.005 |
|
Al |
0.001 |
0.003 |
|
Na |
0.001 |
0.005 |
|
Cl |
0.001 |
0.005 |
|
SO4 |
0.001 |
0.005 |