Physical Properties
| Physical state at 20 °C | Solid | Odour | Odorless |
| Melting point/ Freezing point [°C] | 153 – 159 °C | Solubility in water [% weight] | Soluble in water |
| Colour | White crystalline | pH value | 1.8 at 50 g/l at 20 °C |
| Density [g/cm3] | 1.665 | Flash point [°C] | 173.9 °C |
| Boiling point [°C] | 175°C | Vapour pressure mm/Hg | 3.70E-009 mm Hg @ 250C |
| Vapour density | 7.26 |
Packings
50kg
25kg
5000g
500g
Safety Information and Hazard Symbols
Symbol: GHS07
Signal Word: Danger
Hazardous Statement: H319
Precaution Statement: P305 + P351 + P338
Signal Word: Danger
Hazardous Statement: H319
Precaution Statement: P305 + P351 + P338
Specifications
| Appearance | White crystalline powder |
| Assay (by NaOH titration) | 99.5 – 100.5% |
| Water (by KF) | Max 0.5% |
| Insoluble matter in water | Max 0.005% |
| Chloride (Cl) | Max 0.001% |
| Oxalate (as C2H2O4) | Passes test |
| Substance carbonizable by hot H2SO4 | Passes test |
| Lead (Pb) | Max 0.0002% |
| Iron (Fe) | Max 0.0003% |
| Sulphate (SO4) | Max 0.005% |
| Phosphate (PO4) | Max 0.001% |
| Identity (IR) | Passes test |
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