FINISHED PRODUCT SPECIFICATION
QCD.F.054
Name of Product : SODIUM METABISULPHITE
Chemical Formula : Na2S2O5 Effective Date : 22/11/2016
Molecular Weight : 190.10 g/mol Retest Date : After 3 Year
CAS No. : 7681-57-4 Master Copy : Quality Control
Specification : Confirmed as USP
Product Code : FP042008
HSN Code : 28321090
Department : Quality Control Page No. : 01 of 01
NO. TEST SPECIFICATION
1. DESCRIPTION White Crystal or white to Yellowish Crystalline Powder Having
the ODOUR of SO2
2. SOLUBILITY Freely Soluble in Water and In Glycerin, Slightly Soluble in
Alcohol
3. IDENTIFICATION TEST SODIUM = +VE & SULPHATE = +VE
4. IRON Max.0.002 %
5. HEAVY METALS Max.0.002 %
6. CHLORIDE Max. 0.05%
7. THIOSULPHATE Max. 0.05%
8. RESIDUAL SOLVENTS As Per USP
9. ASSAY 95.0 % - 100.5% OF Na2S2O5
Storage : Store protected from light, Keep containers tightly closed.
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