Code | OX523 | OX522 | OX521 |
Grade | 99.999% | 99.99% | 99.9% |
TeO2 (% min.) | 99.999 | 99.99 | 99.9 |
Impurities (% max.) | |||
Si | 0.0001 | 0.001 | 0.003 |
Se | 0.0001 | 0.002 | 0.002 |
Mg | 0.00005 | 0.0009 | 0.002 |
Ni | 0.00005 | 0.002 | 0.005 |
Pb | 0.00004 | 0.002 | 0.004 |
Fe | 0.00002 | 0.0009 | 0.004 |
Al | 0.00002 | 0.0009 | 0.003 |
Cd | 0.00002 | 0.002 | 0.005 |
Ag | 0.00002 | 0.002 | 0.005 |
Sn | 0.00002 | 0.002 | 0.005 |
Cu | 0.00002 | 0.001 | 0.003 |
Zn | 0.00002 | 0.001 | 0.005 |
Ca | 0.00002 | 0.001 | 0.005 |
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