Sodium metabisulfite ≥97.0-100.0% (by iodometry), EMPROVE® ESSENTIAL Ph. Eur., BP, JP, NF, E223, SAFC®
Supplier: MilliporeSigma
|
Danger
|
Synonyms:
Sodium pyrosulfite, Disodium disulphite, Sodium disulfite, di-Sodium disulphite, di-Sodium disulfite, Sodium pyrosulphite, Disodiumdisulphite, Disodium disulfite, Disodiumdisulfite, Sodium disulphite
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.
Certifications: Conforms to Ph. Eur., BP, JP, NF, E223.
Formula:
Na₂S₂O₅ MW: 190.11 g/mol Melting Pt: 150 °C Density: 1.48 g/cm³ (20 °C) Storage Temperature: Ambient |
MDL Number:
MFCD00167602 CAS Number: 7681-57-4 EINECS: 231-673-0 REACH: 01-2119531326-45 Merck Index: 12,08784 |
Specification Test Results
Assay (Iodometric) | 97.0 - 100.0% |
Assay (Iodometric, SO₂) | 65.4 - 67.4% |
Identity | Passes Test |
Appearance of solution | Passes Test |
pH-value (5%; water) | 3.5 - 5.0 |
Chloride (Cl) | ≤0.01% |
Heavy metals (as Pb) | ≤0.001% |
Thiosulfate (S₂O₃) | ≤0.05% |
As (Arsenic) | ≤0.0002% |
Fe (Iron) | ≤0.0005% |
Hg (Mercury) | ≤0.0001% |
Pb (Lead) | ≤0.0002% |
Se (Selenium) | ≤0.0003% |
Residual Solvents (Ph. Eur./USP/ICH) | Excluded by the Manufacturing Process |
Learn more
About VWR
Avantor is a vertically integrated, global supplier of discovery-to-delivery solutions for...