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Specifications

Sodium Metabisulfite
SYNONYM: Sodium Pyrosulfite
FORMULA: Na2S2O5
M. W.: 190.10
CAS NO.: 7681-57-4
GRADE: tech. Grade
DESCRIPTION: 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.