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SODIUM FORMALDEHYDE SULFOXYLATE HYDRATE Extra Pure
Confirms to IP, USP
| Article No. | Grade | Purity | CAS No. | Molecular Formula | Molecular Weight | H.S. Code | Shelf Life |
|---|---|---|---|---|---|---|---|
| SC2531 | Extra Pure | 45% | 149-44-0 | CH3NaO3S.xH2O | 118.09 (anhydrous basis) | 2831.1020 | 60 Months |
Packings
| 500 g,2500 g,25 Kg,50 Kg |
Physical Properties
| 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 |
Specifications
| 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% |
Safety Information and Hazard Symbols
|
|
|---|---|
| Symbol | GHS08 |
| Signal Word | Warning |
| UN No. | |
| IMCO Class No. | |
| Packing Group | |
| Hazardous Statement | H341 |
| Precaution Statement | P281 |
| Risk Statement | |
| Safety Statement | |