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Shandong Kailong Chemical Technology Development Co., Ltd.

16 YRS

Shandong, China

CNY 70 Million

63936 m²

100-500 people

Main Products: Sodium Bicarbonate / Sodium Metabisulfite / Sodium Sulfite / Magnesium Sulfate Heptahydrate

Shandong, China

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High Purity Sodium Metabisulfite / CAS 7681-57-4

OVERVIEW

Packaging

25 KG/Woven Bag

Lead Time

14-30 days

Max Capacity

300000 MT/Year

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DESCRIPTION

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

Typical 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

IUPAC

Sodium metabisulfite

SMILES

[O-]S(=O)S(=O)(=O)[O-].[Na+].[Na+]

Matter Classification

inorganic

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