Item | Standard | Result |
Appearance | White crystal powder, free of foreign matter | Conforms |
Odor | Similar in character and intensity to standard | Conforms |
Whiteness | ≥80 | 95 |
IR Identification | Matches standard | Conforms |
Assay(%) | 99.0~101.0 | 100.7 |
PH(1% aq. solution) | 11.0~12.0 | 11.3 |
Fe(ppm) | ≤10 | Conforms |
Heavy metal(ppm as Pb) | ≤10 | Conforms |