Key Spec Table
| CAS # | EC Number | Hill Formula | Chemical Formula | Molar Mass | Grade Value |
|---|
| 7757-83-7 | 231-821-4 | Na₂O₃S | Na₂SO₃ | 126.04 g/mol | Ph Eur,BP,NF,E 221 |
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| Description |
|---|
| Catalogue Number | 106652 |
| Overview | Disclaimer:The product is not intended for use as a biocide under global biocide regulations, including but not limited to US EPA's Federal Insecticide Fungicide and Rodenticide Act, European Biocidal Products Regulation, Canada’s Pest Management Regulatory Agency, Turkey’s Biocidal Products Regulation, Korea’s Consumer Chemical Products and Biocide Safety Management Act (K-BPR) and others. |
| Product Information |
|---|
| CAS number | 7757-83-7 |
| EC number | 231-821-4 |
| Grade | Ph Eur,BP,NF,E 221 |
| Hill Formula | Na₂O₃S |
| Chemical formula | Na₂SO₃ |
| Molar Mass | 126.04 g/mol |
| HS Code | 2832 10 10 |
| Quality Level | MQ500 |
| Physicochemical Information |
|---|
| Density | 2.630 g/cm3 |
| Melting Point | >500 °C (decomposition) |
| pH value | 9.0 - 10.5 (126 g/l, H₂O, 25 °C) |
| Bulk density | 1480 kg/m3 |
| Solubility | 220 g/l |
| Toxicological Information |
|---|
| LD 50 oral | LD50 Rat 2610 mg/kg |
| Safety Information according to GHS |
|---|
| Storage class | 10 - 13 Other liquids and solids |
| WGK | WGK 1 slightly hazardous to water |
| Disposal | 6Sulfides 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. |
| Storage and Shipping Information |
|---|
| Storage | Store at +15°C to +25°C. |
| Transport Information |
|---|
| Declaration (railroad and road) ADR, RID | Kein Gefahrgut |
| Declaration (transport by air) IATA-DGR | No Dangerous Good |
| Declaration (transport by sea) IMDG-Code | No Dangerous Good |
| Specifications |
|---|
| Assay (iodometric) | 95.0 - 100.5 % |
| Assay (SO₂) | ≥ 48.0 % |
| Identity | passes test |
| Appearance of solution | passes test |
| Thiosulfate (S₂O₃) | ≤ 0.05 % |
| Heavy metals (as Pb) | ≤ 0.0005 % |
| As (Arsenic) | ≤ 0.0002 % |
| Hg (Mercury) | ≤ 0.0001 % |
| Fe (Iron) | ≤ 0.0005 % |
| Pb (Lead) | ≤ 0.0002 % |
| Se (Selenium) | ≤ 0.00025 % |
| Zn (Zinc) | ≤ 0.0025 % |
| Residual solvents (Ph Eur/USP/ICH) | excluded by the manufacturing process |
| Elemental impurity specifications have been set considering ICH Q3D (Guideline for Elemental Impurities). Class 1-3 elements are not likely to be present above the ICH Q3D option 1 limit, unless specified and indicated (*).Conforms to the purity criteria on food additives according to the current European Commission Regulation. |
| Conforms to Ph Eur, BP, NF, E221 |
