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Potassium sulfite 45%
Potassium metabisulfite is the most commonly used sterilization antioxidant materials in Europe and the United States.The content of sulfur dioxide is 57% with anti-oxidizing, sterilization and to promote the growth of benificial microbianisms. It has become an important means to ensure the quality of wine, which will won’t be replaced. Potassium metabisulfite has more than 100 years in the history of wine. and be added to wine permitted by law.
As antioxidant, bleaches,preservatives, it has used not only in Wine but also in Photographic, industry, chemical and so on.
1. For food addictive
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. For photographic
Promote the developer’s configurate
3. For industry
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 stapk; Treatment agent of waste water; Rubber solidifying agent ;Perfume industry is served as hydrocarbon perfume aldehyde ;The hide profession employ to do to molt dose and pliable dose and wearproof dose ,The sensitize industry is served as the developing agent reductant and the protection of fixing bath dose and so on; sewage treatment.
Technical index
Test item | Unit | Specification | Test method |
K2SO3 | g/100g | 44.5-45.5 | ISO 5990-1996(E) |
density(20°C) | kg/l | 1.445-1.460 | ISO 5990-1996(E) |
appearance |
| colourless or light yellow transparent liquid | ISO 5990-1996(E) |
K2S2O3 | g/100g | 0.01 | spectrophotometry |
pH value(10%solution) |
| 9.0-10.0 | ISO 5990-1996(E) |
heavy metal(measured by Pb) | mg/kg | 10 | AES |
Fe | mg/kg | 5 | AAS |
reaction with NH3-AgNO3 |
| qualified | ISO 5990-1996(E) |
KCl | g/100g | 0.3 | IC |
sulphate(measured by K2SO4) | g/100g | 10.5 | IC |
Product usage
The products could be used as dechlorination agent in the production of potassium hydroxide ion-exchange membrane and developing protective agent in photographic industry. It could also be used in the textile fabrics for bleaching, calcium removing reagent in tanning industry and as the preservative for food industry.
Product package
250 kg per drum (200L) and 1500kg per barrel (IBC drum) or in accordance with user's requirement.
Transport Process
Supplier's Info
Zibo Changcheng Chemical Factory is a professional supplier of potassium metabisulfite. With high quality products, excellent service and a good reputation, which has won great support from customers around the world. We support all kinds chemical products with all the licence and OEM/ODM services. We are looking forward to establish long-term business relationship around the world. We guarantee the finest quality, best price and delivery time!
Factory Sale Potassium metabisulfite