Sodium Sulfite Extra Pure 1kg
EMPROVE® ESSENTIAL Ph Eur,BP,NF,E 221
Manufacturer: Merck
Catalog ID: 106652.1000
Stock: In Stock
Description
| Catalogue Number | 106652 |
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 00 |
Physicochemical Information
| Density | 2.63 g/cm3 (20 °C) |
| Melting Point | >500 °C (decomposition) |
| pH value | 8.8 - 10 (50 g/l, H₂O, 20 °C) |
| Bulk density | 1480 kg/m3 |
| Solubility | 220 g/l |
Toxicological Information
| LD 50 oral | LD50 Rat 2610 mg/kg |
Storage and Shipping Information
| Storage | Store at +5°C to +30°C. |
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 |
