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Molecular formula: NH4BrCAS No.: 12124-97-9
Items | Photo First Grade | PhotoSecond Grade | Medical Grade |
Main content | 99.5% min | 99.5% min | 99.0% min |
Loss on drying | 0.5% max | 0.5% max | 0.5% max |
Water Insoluable | 0.005% max | 0.01% max | |
Chloride | 0.2% max | 0.2% max | 0.5% max |
Iodide | 0.001%max | ||
Sulphate | 0.005%max | 0.005% max | 0.01% max |
PH Value(5%) | 4.56.0 | 4.56.0 | 4.56.0 |
As | ≤0.0004 | ||
Pb | 0.2ppm max | 5ppm max | 5ppm max |
Fe | 0.5ppm max | 1ppm max | |
Cu | 0.5ppm max | 1.0ppm max | |
Bi | 0.2ppm max | 0.5ppm max | |
Peroxide solution penetrability(250g/l) | 93100(410nm) | 85100(410nm) | |
Transparency test | Qualified | Qualified | |
Peroxide solution chromaticity(250g/l) | (15.0 Black once)max | ||
Packing | PP bag with PE inner bag/fibre drum,25kgs per bag/drum |
Ammonium Bromide