| Article No. | 05875 |
| Purity | 45% |
| Molecular Formula | CH3NaO3S.xH2O |
| H.S. Code | 2831.1020 |
| Grade | Extra Pure |
| CAS No. | 149-44-0 |
| Molecular Weight | 118.09 (anhydrous basis) |
| Shelf Life | 60 Months |
Symbol:
| Physical state at 20 °C | Solid | Colour | White flakes | ||||
| Odour | Odorless | pH value | 9.5 - 10.5 | ||||
| Melting point/ Freezing point [°C] | 120 °C | Flash point [°C] | > 100 °C | ||||
| Solubility in water [% weight] | 50 g/l at 20 °C | ||||||
| Appearance | White big flakes | Assay as SO2 (Iodometric; on dried basis) | 45 - 55% |
| Clarity and color of solution | Clear and colorless | Alkalinity | Passes test |
| pH (2% solution) | 9.5 - 10.5 | Sodium sulphite (Na2SO3) | Max 5% |
| Iron (Fe) | Max 0.001% | Sulphide (S) | Passes test |
| Loss on drying (at 105°C) | Max 27% |
 |
Symbol: GHS08
Signal Word: Warning
Hazardous Statement: H341-H361d
Precaution Statement: P201-P280-P308+P313
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