Potassium sulfite
Colorless and tasteless transparent liquid, has reductibility 1, Chemical name:Potassium sulfite solution 2, Molecular formula: K2SO33, Molecular weight: 1584, Properties: Colorless and tasteless transparent liquid, has reductibility. The solution is slightly alkaline, unstable in the air. 5,Quality standard:
Item | Photo grade |
Appearance | clear, colorless solution |
Assay ,w/w | 44-46% |
Chroma (Pt-Co) | ≤40 |
PH( 20°C) | 9.0-9.5 |
Fe, w/w | ≤0.001% |
Sulfate (K2SO4),w/w | ≤0.7% |
Thiosulfate(S2O32-),w/w | ≤0.006% |
Insoluble matter, w/w | ≤0.005% |
Density (20°C) | 1.436-1.460 |
Potassium sulfite