Appearance | white crystalline powder |
Assay | ≥98,0 % |
Solubility (0.5 M in H2O) | clear, colorless solution |
pH- value (0,5 M, in H2O) | 6,0-7,0 |
Loss on drying | ≤3,0 % |
Melting point | 117-123 °C |
Chloride (Cl) | ≤0,005 % |
Sulphate (SO4) | ≤0,005 % |
Heavy metals (as Pb) | ≤0,0005 % |
Absorbance | |
260 nm | ≤0,06 |
280 nm | ≤0,05 |