Physical and Chemical indicator:
Item | Indicator |
NaHCO3,% | 99.0-100.5% |
Loss on drying (w/%) | ≤0.2% |
pH(10g/L water solution) | ≤8.5% |
Chloride (CL-) | ≤0.4% |
Whiteness | ≥85 |
Arsenic(As) | ≤1 mg/kg |
Lead(Pb) | ≤5 mg/kg |