توضیحات
سديم سولفيت بدون آب 1 كيلوگرم كد 8805 كمپاني اينترچم انگلستان
Sodium sulfite
Synonym: Sodium sulfite
- CAS Number 7757-83-7
- Linear Formula Na2SO3
- Molecular Weight 126.04
- EC Number 231-821-4
- MDL number MFCD00003503
- PubChem Substance ID 329752528
Analysis Note
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
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