Potassium Metabisulfite
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 one antioxidant, bleaches,preservatives, it has used not only in Wine but also in Photographic, industry, chemical and so on.
1. For food Additive
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 industryMordant 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.
Tech index
Test item | Unit | Specification | Test method |
K2S2O5 | g/100g | 97.2 | Acc.Fcc IV p.322 |
SO2 | g/100g | 56.0 | calculation |
K2S2O3 | g/100g | 0.1 | ISO 3629-1996(E) |
Na | g/100g | 2 | AAS |
Cl | g/kg | 0.5 | IC |
pH-value(10%solution) | - | 3.8-4.8 | RCA/Q-S-066 |
heavy metal(measured by Pb) | mg/kg | 10 | AAS |
As | mg/kg | 1 | AAS |
Cu | mg/kg | 1 | ICP-AES |
Fe | mg/kg | 5 | ICP-AES |
Hg | mg/kg | 0.1 | AAS(cold vapour) |
Pb | mg/kg | 1 | ICP-AES |
Se | mg/kg | 1 | AAS |
Zn | mg/kg | 1 | ICP-AES |
K2SO3 +K2SO4 | mg/kg | excess material | calculation |
We always pay attention to the production of a product
Wine Additive Potassium salt (1:2)