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Sodium metabisulfite or sodium pyrosulfite (IUPAC spelling; Br. E. sodium metabisulphite or sodium pyrosulphite) is an inorganic compound of chemical formula Na2S2O5. The substance is sometimes referred to as disodium metabisulfite. It is used as a disinfectant, antioxidant, and preservative agent.

Specification

PURITY(AS Na2S2O5 ): 97.0%MIN 

SULFUR DIOXIDE(SO2): 65.0%MIN 

HEAVY METALS(As Pb): 0.0005%MAX 

WATER INSOLUBLE: 0.05%MAX 

IRON(Fe): 0.003%MAX 

PH VALUE: 4.0-4.8 

Application

Sodium Metabisulfite in Food Production

Sodium Metabisulfite is widely used as preservative, antioxidant, bleach, color fixative and leavening agent in food production.

As preservative, antioxidant, color fixative: in Canned mushrooms, candied, vermicelli to whiten products, keep fresh and extend shelf life.

As leavening agent: in biscuit, baked food and bread to ferment.

Sodium Metabisulfite in Beverage

Not enough is known about application of Sodium Metabisulfite in beverage.

Sodium Metabisulfite in Pharmaceutical

Sodium Metabisulfite is widely used as intermediate in Pharmaceutical.

As intermediate: in manufacturing of chloroform, styrene sulfone and benzaldehyde.

Sodium Metabisulfite in Cosmetics

Not enough is known about application of Sodium Metabisulfite in Cosmetics.

Sodium Metabisulfite in Agriculture/Animal Feed

Not enough is known about application of Sodium Metabisulfite in Agriculture/Animal Feed.

Sodium Metabisulfite in Other Industries

Sodium Metabisulfite is widely used as Antichlor, coagulants and contrast agent in various other industries.

Package

25kg/bag