Send Inquiry
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%) | 5.58.0 | 5.58.0 | 5.510.5 |
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 | ||
