Certificate of Analysis

Product Name SODIUM METABISULPHITE 97% AR
CAS Number 7681-57-4
Molecular Formula Na2S2O5
Catalogue No. AL1393A
Molecular Weight 190.10 g/mol
Batch Number AL-2026-AL1393A
Manufacturing Date September-2026
Expire Date September-2031
Type of Test Standard Observed
Assay (Purity) 97% min 97.5%
Moisture Content < 1% 0.5%
Residue on Ignition < 0.5% 0.3%
Solubility 50 g/L in water 52 g/L
Result: The above product is expected to comply with AR grade specification.

Tested By

Hitesh Kunjathur Tested By Stamp

Analysed By

Preeti Rane Analysed By Stamp
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