FINISHED PRODUCT SPECIFICATION
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.