Molecular formula: NaBr
CAS No.: 7647-15-6
| Appearance | White crystallization pellet or crystalline powder | ||
| Items | Photo Grade | Medical Grade | Technical Grade |
| Main content | 99.5% min | 99.0% min | 98.5% min |
| Loss on drying | 0.3% max | 0.5% max | 1.0% max |
| Chloride | 0.3% max | 0.6% max | 1.5% max |
| Bromate | 0.003% max | 0.003% max | No reaction |
| Iodide | 0.005% max | 0.01% max | Qualified |
| Sulphate | 0.01% max | 0.02% max | 0.1% max |
| PH Value(5%) | 5.5—8.0 | 5.5—8.0 | 5.5—10.5 |
| As | 0.5ppm max | 4ppm max | — |
| Pb | 0.5ppm max | 4ppm max | — |
| Fe | 1ppm max | 4ppm max | — |
| Cu | 1ppm max | — | — |
| Transparency test | Qualified | — | — |
| Packing | 25kgs PE/pp bags or 1000 kg ton bag packing | ||