Grade |
AMT-1A |
AMT-2A |
AMT-1B |
AMT-2B |
AMT-1C |
AMT-2C |
Purity Min.(%) |
99.95 |
99.90 |
Main Comp WO3 MIN.(%) |
83.0 |
83.0 |
| Content of Other Chemical Element Max.(%) |
Al |
0.001 |
0.001 |
As |
0.001 |
0.001 |
Bi |
0.0001 |
0.0001 |
Ca |
0.001 |
0.003 |
Cr |
0.001 |
0.001 |
Cu |
0.001 |
0.003 |
Fe |
0.002 |
0.003 |
K |
0.0015 |
0.002 |
Mg |
0.001 |
0.002 |
Mn |
0.001 |
0.001 |
Mo |
0.005 |
0.01 |
Na |
0.0015 |
0.002 |
Ni |
0.001 |
0.001 |
P |
0.001 |
0.003 |
Pb |
0.0001 |
0.0001 |
S |
0.0005 |
0.001 |
Sb |
0.001 |
0.002 |
Si |
0.001 |
0.002 |
Sn |
0.0001 |
0.0003 |
Ti |
0.001 |
0.002 |
V |
0.001 |
0.002 |
| Matter Undissolved in Water Max |
0.5 |
0.5 |
| PH Value |
3.0-4.5 |
3.0-4.5 |
Appearance:White crytallized powder or light yellow.
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