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| LC5250 Sodium sulfite anhydrous for analysis |
| Order number | Packaging | Quantity | Price € |
| AC32250 | Plastic bottle | 500 g | 14.22 |
| AC32250 | Plastic bottle | 1 kg | 23.18 |
| AC32250 | Plastic bottle | 5 kg | 93.60 |
| AC32250 | Fiber carton | 50 kg | inquire |
| Product information | |
| Hill Formula | Na2O3S |
| Chemical formula | Na2SO3 |
| HS Code | 2832 10 00 |
| EC number | 231-821-4 |
| Molar mass | 126.04 g/mol |
| CAS number | 7757-83-7 |
| Chemical and physical data | |
| Solubility | 220 g/l (20 °C) |
| Melting point | >500 °C (decomposition) |
| Molar mass | 126.04 g/mol |
| Density | 2.63 g/cm3 (20 °C) |
| Bulk density | 1480 kg/m3 |
| pH value | 8.8 – 10 (50 g/l, H2O, 20 °C) |
| Safety information | |
| Storage class | 10 – 13 Other liquids and solids |
| WGK | WGK 1 slightly water endangering |
| Disposal | 6 Sulfides and sulfites as well as other reducing substances, inorganic cyanides and isonitriles: Stir into sodium hypochlorite solution (Cat. No. 105614) and, if necessary, leave to react for several days. Caution: some substances may show a violent reaction! Draw off any toxic or flammable gases that may be formed. Excess oxidant should be neutralized with sodium thiosulfate (Cat. No. 106513). Container D or E. |
| Toxicological data | |
| LD 50 oral | LD50 rat 2610 mg/kg |
| Specifications | |
| Assay (iodometric) | 97.0 – 100.5 % |
| Identity | passes test |
| Appearance of solution | passes test |
| Insoluble matter | ≤ 0.005 % |
| Free acid | passes test |
| Titrable free base | ≤ 0.03 meq/g |
| Chloride (Cl) | ≤ 0.02 % |
| Thiosulfate (S2O3) | ≤ 0.03 % |
| Heavy metals (as Pb) | ≤ 0.0005 % |
| As (Arsenic) | ≤ 0.0001 % |
| Cu (Copper) | ≤ 0.0005 % |
| Fe (Iron) | ≤ 0.001 % |
| Pb (Lead) | ≤ 0.0005 % |
| Se (Selenium) | ≤ 0.0004 % |
| Zn (Zinc) | ≤ 0.001 % |