| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
|
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Discover the Excellence of Our Premium Economical Food Preservative: Sodium Metabisulfite
Sodium Metabisulfite This remarkable substance is a white or yellow crystalline powder, or small crystals, exuding a potent SO2 aroma. With a specific gravity of 1.4, it dissolves readily in water, where its solution becomes acidic. Upon meeting a strong acid, it liberates SO2, forming corresponding salts. Exposure to air causes it to oxidize, while at temperatures exceeding 150 degrees Celsius, SO2 is released due to decomposition. Known chemically as Na2S2O5, this product requires careful storage to maintain its integrity over time.
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INDEX OF SODIUM METABISULFITE |
CONTENT |
|
|
FOOD GRADE |
INDUSTRIAL GRADE |
|
|
PURITY (AS NA2S2O5) |
97%MIN |
96%MIN |
|
SO2 |
65.0%MIN |
65%MIN |
|
AS |
0.0002% MAX |
- |
|
HEAVY METALS (AS Pb) |
0.0005% MAX |
- |
|
SE |
0.0005% MAX |
- |
|
IRON (Fe) |
0.001% MAX |
0.002% MAX |
|
WATER TREATMENT |
0.02% MAX |
0.05% MAX |
|
PH VALUE |
4.0-4.8 |
4.0-4.8 |
|
PURITY (AS NA2S2O5) |
97% MIN |
96% MIN |
(1) Food Grade Applications: An effective bleach agent suitable for candies, cakes, and bamboo shoots. It acts as a leavening agent in bread and crackers and serves as an antiseptic and germicide in fruit juices, tinned foods, brews, and cereals, ensuring their safe and extended storage. Additionally, it functions as an inhibitor and freshening agent for day lilies, seafood, fruits, and vegetables.
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