|
Item |
Standard |
Analysis data |
|
Appearance |
White powder |
conforms |
|
State of Solution (Transmittance) |
Not less than 95.0% |
96.2% |
|
Chloride (Cl) |
Not more than 0.02% |
0.018% |
|
Heavy metal(Pb) |
Not more than 15ppm |
<15ppm |
|
Arsenic(As2O3) |
Not more than 2ppm |
<2ppm |
|
Loss on drying |
Not more than 0.20% |
0.19% |
|
Residue on ignition(sulfated) |
Not more than 0.20% |
0.1% |
|
Assay |
98.0 to101.0% |
99.0% |
