Customization: | Available |
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CAS No.: | 7681-57-4 |
Formula: | H2O5S2.2Na |
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Versatile Sodium Metabisulfite - From Photography to Leather Processing
Sodium pyrosulfite is white or yellow crystalline powder or small crystals, with a strong SO2 odor, specific gravity of 1.4. It is soluble in water, acidic aqueous solution, and strong acid contact with SO2 emitted corresponding salts, long-standing air, then oxidized to Na2S2O6, so the product can not storage for a long time. Higher than 150 degrees Celsius, that is, decomposition of SO2.
Name: | Sodium Metabisulfite |
Appearance: | White crystal powder |
Place of orgin: | China |
Grade: | Food grade/Industry Grade |
Certificta: | ISO |
Melting point | 150 °C |
Application
Sodium metabisulfite is used in the chemical and pharmaceutical industries for the production of insurance powder, sulfamethoxazole acetaminophen, caprolactam, as well as for the purification of chloroform, phenylpropylsulfone, and benzaldehyde. An ingredient used as a fixing agent in the photography industry. The spice industry is used in the production of vanillin in Chemicalbook. Used as a preservative in the brewing industry, a rubber coagulant, and a dechlorination agent after bleaching cotton fabric. Organic intermediates, dyes, and leather are used as reducing agents in the electroplating industry, wastewater treatment in oil fields, and mineral processing agents in mines.
1. It is used as bleaching agent, mordant, reducing agent, rubber coagulant, organic synthesis, pharmaceutical and perfume.
2. It is used as chromatographic reagent, preservative and reducing agent, and used in dye and pharmaceutical industry.
3. The pharmaceutical industry is used to produce chloroform, phenylpropanesulfone and benzaldehyde.
4. The rubber industry is used as coagulant.
5. Dyeing and printing industry is used as dechlorination agent of cotton fabric after bleaching and auxiliary agent of cotton cloth scouring and refining.
6. Leather industry used in leather processing, can make leather soft, plump, tough, waterproof, folding resistance, wear resistance and other properties.
7. Chemical industry is used to produce hydroxyvanillin and hydroxylamine hydrochloride.
8. The photographic industry is used as developer, etc.Molecular formulaNa2S2O5
1. Background: more than 40 years mining industry experiences;
2. Product: patented products, specially for complex difficult mineral ores
3. Technology service: adjust formula and recommend most suitable product model according to different application environment
4. Technical engineer on-site service: arrive at site within 24 hours
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