Sodium Metabisulfite

Home > Food(Feed) Additives > Bleaching Agents > Sodium Metabisulfite Manufacturers > High Purity Sodium Metabisulfite

CAS NO.： 7681-57-4

FOB Price： NEGOTIABLE Get Latest Price

Specification： ≥98%

Documentation： Get COA after inquiry

Lead Time： 14-30 days

Max Capacity： 300000MT/Year

Packing： 25KG/Woven Bag; Customed Package

Product Detail

Properties

High Purity Sodium Metabisulfite

Item	index
Main content(Na₂S₂O₅)	≥98
Fe(As content Fe)	≤0.001
Clarity	Clear
Water-Insoluble	≤0.01
Heavy metal content(Pb)	≤0.0005
As content(As)	≤0.0001
PH Value	4.2~4.8

Properties

It is used as preservative, bleach and loosening agent in food processing. In industry, sodium pyrosulfite is used in printing and dyeing, organic synthesis, printing, tanning, pharmaceutical and other departments; Sodium pyrosulfite is used in the chemical and pharmaceutical industries for the production of insurance powder, sulfamethazine, analgin, caprolactam, etc., as well as the purification of chloroform, phenylpropanesulfone and benzene formaldehyde. The photographic industry is used as an ingredient for fixing agents. Perfume industry is used to produce vanillin. It is used as preservative in brewing industry, rubber coagulant and dechlorination agent after cotton bleaching. Organic intermediates, dyes and tanning are used as reducing agents, electroplating industry, oilfield wastewater treatment and mineral dressing agent in mines.

CAS No.

7681-57-4

Formula

Na2O5S2

Molecular Mass

190.10700

Exact Mass

189.89800

PSA

124.92000

Logp

0.27220