Verified Supplier | Weifang Ruidesheng C...

Quick Details

  • Classification: Other Inorganic Salts
  • CAS No.: 7681-57-4
  • Other Names: sodium metabisulfite
  • MF: Na2S2O5
  • EINECS No.: 231-673-0
  • Place of Origin: Shandong, China (Mainland)
  • Grade Standard: Industrial Grade
  • Purity: 97%min
  • Appearance: white or light yellow crystalline powder or crystals
  • Application: Industry
  • Brand Name: RuiDeSheng

Packaging & Delivery

Packaging Details: 25kg/50kg/1000kg PP woven bag with PE inner
Delivery Detail: within 15 days


Appearance:White or light yellow crystalline powder or crystals
Grade:Food & Industry

Molecular formulaNa2S2O5

Molecular weight190.09

Grade: Food Grade,Industrial Grade,Photo Grade, Pharmaceutical Grade

Storage: shading, sealing preservationProhibit contact with strong acid and strong oxidizer

Appearance white or light yellow crystalline powder or crystals. Stored for a long time

color will turn yellow

Physical and chemical properties:

Sodium metabisulfite is white or yellow crystalline powder or crystals, with a strong smell of SO2, specific gravity is 1.4, soluble in water, acidic aqueous solution, contact with strong acids are released SO2 and generate the corresponding salts, for a long time in the air and oxidized to Na2S2O6, Products can't exposed to the air for long-term. Higher than 150 °C Namely, after the decomposition get SO2. soluble in water, acidic aqueous solution. Soluble in glycerin, slightly soluble in ethanol.


1,Food Grade: Bleach agent (e.g. candies, cake, bamboo shoots, etc);

Loose agent (e.g. bread, cracker etc);

Antiseptic and germicide (e.g. fruit juice, tinned food, brews, the cereals food is defended storage etc.) ;

Inhibitor and freshen agent (e.g. day lily, seafood, fruit and vegetable etc.)

2, Industry Grade: Mordant of printing and dyeing; Dechlorinate of textile after bleaching ; Sulphonated agent and reducer of chemical industry and pharmacy; Bleach of paper pulp, bamboo and timber bleach of Stap; Treatment agent of waste water; Rubber solidifying agent Perfume industry is served as hydro carbon perfume aldehyde. The hide profession employ to do to molt dose and pliable dose and wearproof  dose ; sewage treatment, and so on .

3, Pharmaceutical Grade: In chemical synthesis in the production of acrylic fibre, vitamin K, vitamin A, pharmaceutical intermediates, etc.

4, Photo Grade:The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose.

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Verified Supplier | Weifang Ruidesheng Chemical Co., Ltd.
[ Shandong, China (Mainland) ]
Business Type: Trading Company
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