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.