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Molecular Formula (Sodium Metabisulfite): Na2S2O5
Molecular Weight: 190.05 gr/mol
Chemical Name: Sodium Metabisulfite
CAS Number: 7681-57-4
It is in the form of a white crystalline powder with a slight sulfur odor. It is toxic if inhaled. It has a strong irritating effect on skin and tissue. It becomes a corrosive acid when mixed with water.
SMBS is an inorganic sodium salt consisting of sodium and disulfide ions in a ratio of 2 to 1. It usually acts as a food antioxidant. Bisulfite is present in its powder.
E Code: E223
Other Names are as follows;
Sodium Pyrosulphite
Sodium Bisulphite anhydrous
Pyrosulfuric Acid, disodium salt
7681-57-4
Pyrosulphite
Disulfite
Metabisulfite
Natrium Pyrosulphite
SMBS
E 223
What are the Physical and Chemical Properties of Sodium Metabisulfite?
It is a chemical substance in solid form with a white crystalline powder appearance in physical appearance. It is white to slightly yellow in color.
Its melting point is 150 ° C.
Its density is 1.48 gr/cm3.
Its solubility is 540 gr/L at 20 ° C.
Sodium Metabisulfite is a chemical substance sensitive to air and moisture. Therefore, contact with air and water should be prevented. It should be stored in dry areas.
It is a stable chemical. It is incompatible with strong oxidizing agents and strong acids. It releases toxic gas in contact with strong acids.
USAGE AREAS
In the textile industry, as an antichlor in the bleaching of fibers and as a fixative in dyeing
As an antiseptic in the production of cellulose esters
As a main ingredient in the production of various organic substances such as aromatic alcohols, aldehydes and sodium hydrosulphide
As an antiseptic in the fermentation process
As a depilatory in the leather industry
As a disinfectant in the cosmetic and canning industries
In industries such as paper, rubber, glue, galvanoplasty, in the food industry and in various application areas
