SODIUM METABISULFITE sodium metabisulfate from FLWORLD high quality and competitive price,precessing under strict inspect       SODIUM METABISULFITESYNONYM: Sodium PyrosulfiteFORMULA: Na2S2O5M. W.: 190.10CAS NO.: 7681-57-4 GRADE: tech. gradeDESCRIPTION: white or light yellow crystalline powder. SPECIFICATIONS: 

CONTENT (SO2)	65.0% MIN.
IRON (Fe)	0.005%MAX.
INSOLUBLE IN WATER	0.05%MAX.
PH VALUE	4.0-5.6

packing in pvc plastic film with a polypropylene over bag. net weight: 25, 50, 1000kilograms per bag.

sodium metabisulfite