Physical Properties
| Physical state at 20 °C | Solid | Odour | Distinct sulfur dioxide odor |
| Melting point/ Freezing point [°C] | 300°C | Solubility in water [% weight] | Soluble in water |
| Colour | White crystalline | Vapour density | 3.6 |
| Density [g/cm3] | 2.19 | Partition coefficient Log Pow octanol / water at 20°C | -4.7 |
Packings
25kg
25Kg
500g
Safety Information and Hazard Symbols
Symbol: GHS02, GHS07
Signal Word: Danger
UN No.: 1384
IMCO Class No.: 4.2
Packing Group: II
Hazardous Statement: H251-H302
Precaution Statement: P235 + P410
Signal Word: Danger
UN No.: 1384
IMCO Class No.: 4.2
Packing Group: II
Hazardous Statement: H251-H302
Precaution Statement: P235 + P410
Specifications
| Appearance | White crystalline powder |
| Assay (iodometric) | 85 – 87%* |
| Iron (Fe) | Max 0.002% |
| * At the moment of batch analysis | – |
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