PRODUCT NAME: Sodium Metabisulfite Secondary Reference Standard TraCERT
Date of Mfg: Sample COA	RETEST DATE: Sample COA

Catalogue Number	GCT-267
Item/Batch Number	Sample COA
Quantity	Sample COA
CAS Number	7681-57-4
Alternate CAS Number	33669-61-3
Mol. Formula	Na₂S₂O₅
Molecular Wt	190.11
Synonyms	Disulfurous Acid Disodium Salt; Pyrosulfurous Acid Disodium Salt; Campden Tablets; Colorstrip Catalyst 100; Disodium disulfite; Disodium Metabisulfite; Disodium Pyrosulfite; Disodium Pyrosulfite
Long Term Storage Condition	Keep container tightly closed in a dry and well-ventilated place
Handling instruction	Sample COA

Test	Results
Appearance	White to Off-White Solid
Identification by 13C NMR	Sample COA
Identification by HNMR	Sample COA
Identification By IR	Sample COA
Mass (ESI)	Sample COA
Solubility	Water (Slightly)
Purity	NLT 99.9% By GC
Analysis Date (Release Date)	Sample COA
Attachments	Sample COA
Other Information	Sample COA
Note: This material can be used as a referance standard and is for research purpose ONLY and not for human consumption