Sodium metabisulphite ≥97.0-100.0% (by iodometry), EMPROVE® ESSENTIAL NF, JP, Ph. Eur., BP, E223, extra pure suitable for use as excipient, SAFC®
Supplier: MERCK PRODUCTION CHEMICALS
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Danger
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Synonyms:
Disodium disulphite, di-Sodium disulphite, Sodium pyrosulphite, Disodiumdisulphite, Sodium disulphite
1.06357.5000
1.06357.9029
1.06357.5000EA
288
EUR
1.06357.5000
1.06357.9029
Sodium metabisulphite ≥97.0-100.0% (by iodometry), EMPROVE® ESSENTIAL NF, JP, Ph. Eur., BP, E223, extra pure suitable for use as excipient, SAFC®
Sodium metabisulphite
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 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 |
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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 |
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