Sodium Metabisulphite is an inorganic compound with the chemical formula Na2S2O5. It is usually a white or yellow crystal with a strong irritating smell and is soluble in water. The aqueous solution is acidic and can release sulfur dioxide when in contact with strong acids to form corresponding salts.
Sodium Metabisulphite is divided into industrial grade Sodium Metabisulphite and food grade Sodium Metabisulphite. So, what is the difference in application between industrial grade Sodium Metabisulphite and food grade Sodium Metabisulphite?
Uses of industrial grade Sodium Metabisulphite are as follows:
1)Industrial grade Sodium Metabisulphite can be used to produce Sodium Hydrosulfite;
2)Industrial grade Sodium Metabisulphite can be used in the medical industry for the purification of hloroform, phenylpropanone, benzaldehyde;
3)In the rubber industry industrial grade Sodium Metabisulphite is as a coagulant;
4)In the printing and dyeing industry industrial grade Sodium Metabisulphite is as a bleaching agent after bleaching cotton fabric and as a cooking aid for cotton fabric;
5)Industrial grade Sodium Metabisulphite is as a developer in the photography industry;
6)In the chemical industry, industrial grade Sodium Metabisulphite is used to produce hydroxy vanillin, hydroxylamine hydrochloride, etc.
7)In the leather industry, Industrial grade Sodium Metabisulphite is used for leather treatment to make the leather soft, full, tough, and water-resistant, and to resist bending and wearing.
8)In the waste water treatment industry, Industrial grade Sodium Metabisulphite serves as a reducing agent, such as treating hexavalent chromium containing waste water, and Sodium Metabisulphite/aeration method can be used to treat cyanide containing waste water. It is also used in the electroplating industry and oil field waste water treatment.
9)Industrial grade Sodium Metabisulphite can be used as a mine beneficiation agent. It reduces the floatability of minerals. It can form a hydrophilic film on the surface of the ore particles and form a colloidal adsorption film, thus preventing the collector from interacting with the mineral surface
Food grade Sodium Metabisulphite is a widely used food additive. In addition to bleaching, it also has the following functions:
1)Anti-browning effect: Enzymatic browning often occurs in fruits and potatoes. Food grade Sodium Metabisulphite is a reducing agent, which can strongly inhibit the activity of polyphenol oxidase.
2)Anti-oxidation effect: Sulfite has a good anti-oxidation effect. Sulfite is a strong reducing agent, which can consume oxygen in fruits and vegetables, inhibit the activity of oxidases, and effectively reduce the oxidation and destruction of vitamin C in fruits and vegetables.
3)Antimicrobial effect: Sulfite can play an antimicrobial role. Insoluble sulfite is believed to inhibit yeasts, molds and bacteria.
Weifang Toption Chemical lndustry Co., Ltd. is a professional supplier of Sodium Metabisulphite, Industrial Grade Sodium Metabisulphite, Food Grade Sodum Metabisulfite, Calcium Chloride, Soda Ash, Soda Ash Light, Soda Ash Dense, Caustic Soda, Barium Chloride Dihydrate, Magnesium Chloride, Sodium Bicarbonate, Sodium Hydrosulfite, Gel Breaker, etc. Please visit our website www.toptionchem.com for more information. If you have any requirement, please do not hesitate to contact us.
Post time: Feb-27-2024