| Impurity Contained (ppm max) | |||
| Grade | SHXLNB-1 | SHXLNB-1 | SHXLNB-1 |
| Nb2O5 | >99.995% | 99.99% | 99.99% |
| A1 | 1 | 1 | 1 |
| As | 0.1 | 1 | 1 |
| B | 1 | 1 | 1 |
| Bi | 0.5 | 2 | 2 |
| Ca | 1 | 5 | 5 |
| C1 | 4 | 9 | 9 |
| Co | 0.1 | 1 | 1 |
| Cr | 1 | 3 | 3 |
| Cu | 1 | 1 | 3 |
| F | 15 | 50 | 75 |
| Fe | 1 | 3 | 3 |
| K | 1 | 2 | 5 |
| Mg | 1 | 1 | 2 |
| Mn | 0.5 | 2 | 2 |
| Mo | 0.5 | 2 | 2 |
| Na | 3 | 5 | 5 |
| Ni | 1 | 3 | 3 |
| Pb | 0.5 | 3 | 3 |
| Sb | 3 | 5 | 10 |
| Si | 3 | 10 | 15 |
| Sn | 3 | 1 | 10 |
| Ta | 1 | 10 | 10 |
| Ti | 1 | 1 | 1 |
| V | 0.5 | 1 | 1 |
| W | 0.2 | 3 | 3 |
| Zr | 0.5 | 1 | 1 |
| L.O.I. | 0.10% | 0.10% | 0.10% |
| SIZE | -60mesh | -60mesh | -60mesh |