Sodium pyrosulfite Molecule Formula: Na2S2O5 Molecule Weight: 190.12 CAS No.: 7681-57-4

Sodium Metabisulfite (Na2S2O5)is our strong item ,and have passed through ISO9001:2008Quality Management System Certification..

 Synonym: Sodium pyrosulfite

Molecule Formula: Na2S2O5                  

Molecule Weight: 190.12

CAS No.: 7681-57-4

Property: White or light-yellow crystalline powder, Specific gravity is 1.4. Its soluble in glycerine, Its soluble slightly in alcohol.

Specification:

CAS No.: 7681-38-1	Place of Origin: China (Mainland)	Brand Name: FENGDA
color: white

Sodium Metabisulfite (as SO2)	65% Min
Iron(Fe)	0.003% Max
Water Insoluble Matter	0.05% Max
PH	4.0-4.6
Heavy metal(as Pb)	0.002% Max
Arsenic(As)	0.0002% Max

Packing: Net each in 25kg plastic woven bag, lined with PE bag.

Usage: Mainly used for manufacturing sulphuric acid and bactericidal agent, Carrying out vegetable dehydrate, fruit preservation and bleaching.

sodium metabisulfite(Na2S2O5)