Certificate of Analysis

Product Name SODIUM METABISULPHITE 96.5% Extra Pure
CAS Number 7681-57-4
Molecular Formula Na2S2O5
Catalogue No. AL01393
Molecular Weight 190.10 g/mol
Batch Number AL-2026-AL01393
Manufacturing Date September-2026
Expire Date September-2031
Type of Test Standard Observed
Assay 96.5% min 96.8%
Moisture Content < 1.0% 0.5%
Residue on Ignition < 0.5% 0.3%
Related Substances None detected None detected
Solubility 50 g/100 mL 52 g/100 mL (at 20 °C)
Result: The above product is expected to comply with Extra Pure grade specification.

Tested By

Hitesh Kunjathur Tested By Stamp

Analysed By

Preeti Rane Analysed By Stamp
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