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20 Metric Ton |
Negotiable |
Sodium Metabisulfite Sodium Metabisulfite Food Additive 7681-57-4
Sodium Metabisulfite introductions:
1.Industrial Grade Technical Parameters:
Testing Programme |
National standard HG/T2826-2008 |
Value Report | |
Top Grade | First Grade | ||
Main content (calculated as Na2S2 O5 ), % | ≥96.5 | ≥95.0 | 97 |
Water insoluble matter, % | ≤0.05 | ≤0.05 | 0.01 |
Iron (Fe),% | ≤0.005 | ≤0.010 | 0.0015 |
Arsenic (As),% | ≤0.0001 | .-- | 0.0001 |
2.Food Grade Technical Parameters:
Testing Programmes |
National standard GB1886.7-2015 |
Value Report | |
Main content (calculated as Na2S2 O5 ), % | ≥96.5 | ≥97.5 | |
Iron Content (in Fe),/% | ≤0.003 | ≤0.0015 | |
Clarity | Pass the test | Clarify | |
Arsenic Content (in As),% | ≤0.0001 | ≤0.0001 | |
Heavy Metal Content (in Pb),% | ≤0.0005 | ≤0.0002 |
Water Treatment | 1.Eliminating dissolved oxygen in waste water and in pipes; |
2.Cleaning water pipes and reverse osmosis membranes in desalinization equipment as it is an antibacterial. |
|
3.Sodium metabisulfite is used in water treatment plants to remove excess chlorine. |
|
Bleaching Agent |
Sodium metabisulfite's functions as a bleaching agent, which is useful in making paper pulp, cotton and wool. |
Photographic and film industry |
For preparing developer solutions, for acidifying fixing baths (photo grade). |
Landscape Gardening |
Sodium metabisulfite used in landscape gardening as a tree stump remover, as it disintegrates the lignin -- chemicals in plant cell walls -- in the tree stumps, making them easier to remove. |
Fiber Industry | In the sulphitisation of tanning extract. |
Gold mining | For bleaching ground wood, as an antichlor. |
Antimicrobial |
1.Sodium metabisulfite is commonly used as a food preservative for dried foods, as well as fruit concentrate juices. |
2.Sodium metabisulfite acts as an antimicrobial, inhibiting the growth of fungi and bacteria, thereby keeping food fresh and safe. |
|
3.In beer and wine manufacturing, sodium metabisulfite is used as both a sterilizer and an antioxidant in the process of brewing beer or fermenting wine. |
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Medicinal |
Sodium metabisulfite is an antioxidant additive in inject able medicines and is also used as a reducing agent in pharmaceuticals. |
Package:
Packaging: External polypropylene woven bags; paper-plastic composite bags, craft paper bags; lined with polyethylene plastic bags.
Net Weight:25kg/bag,50kg/bag,1000kg/bag or customized according to customer requirements.
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