| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
|
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Premium Quality and Economical Food Preservatives: Sodium Metabisulfite
Sodium Metabisulfite Sodium Metabisulfite is a pristine white or pale yellow crystalline powder or small crystal known for its strong SO2 scent. With a specific gravity of 1.4, it dissolves seamlessly in water, resulting in an acidic aqueous solution. Upon encountering a strong acid, it liberates SO2, forming a corresponding salt. Exposure to air leads to its oxidation. The chemical formula is Na2S2O5, and it is advised not to store this product for prolonged periods. When heated beyond 150 degrees Celsius, it decomposes, releasing SO2.
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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: As a Bleaching Agent in products such as candies, cakes, and bamboo shoots; it acts as a Leavening Agent in bread and crackers; serves as an Antiseptic and Germicide for fruit juices, canned foods, and stored cereal products. Additionally, it functions as an Inhibitor and Freshening Agent in items like day lilies, seafood, fruits, and vegetables.
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