Item |
Grade-A Product |
Best Quality |
Appearance |
white crystals |
white crystals |
Purity ≥ % |
99.5 |
99.8 |
Moisture ≤ % |
0.1 |
0.1 |
Clarity |
up to standard |
up to standard |
Insoluble matter in water ≤ % |
0.002 |
0.01 |
Cl- ≤ % |
0.05 |
0.03 |
SO42- ≤ % |
0.01 |
0.005 |
Bromide ≤ % |
0.005 |
0.05 |
PH |
5.5-7.5 |
5.0-7.0 |
Fe mg/kg ≤ |
5.0 |
5.0 |
Heavy metal mg/kg ≤ |
10.0 |
5.0 |
Use | strong oxidant, mainly used in printing/dyeing auxiliary, hair-weaving agent, and extraction and flaking of noble metals. | |
Packing | fiber drum lined with plastic bag or polypropylene woven bag |