Physical state at 20 °C | Solid | Odour | Odorless |
Melting point/ Freezing point [°C] | 170 – 175 °C | Solubility in water [% weight] | Soluble in water |
Colour | White to off white | Auto-ignition temperature [°C] | > 200 °C |
Density [g/cm3] | 0.8 | pH value | 6.5 – 7.5 |
Appearance | White to off-white crystalline powder |
Assay | 98 – 102% |
Identification: Sodium | Passes test |
Identification (by TLC) | Passes test |
pH (10% solution in water) | 6.5 – 7.5 |
Chloride (Cl) | Max 0.07% |
Sulphate (SO4) | Max 0.05% |
Reducing substance (as glucose) | Max 0.5% |
Lead (Pb) | Max 0.001% |