| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
|
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Introducing the Premium Economical Food Preservatives: Sodium Metabisulfite. This exceptional product stands out for its efficacy in preserving the freshness and extending the shelf life of food items. Crafted to meet the highest standards, it is the ideal choice for those seeking quality and affordability.
Sodium Metabisulfite This remarkable compound appears as a white or yellow crystalline powder, or in small crystal form, characterized by a robust SO2 aroma. With a specific gravity of 1.4 and being highly soluble in water, it forms an acidic aqueous solution. When interacting with strong acids, it releases SO2 to create a corresponding salt. Exposure to air leads to oxidation, therefore, its chemical formulation, Na2S2O5, demands careful storage as it is not suitable for long-term keeping. At temperatures exceeding 150 degrees Celsius, it decomposes to release 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 bleach agent in products such as candies, cakes, and bamboo shoots. It acts as a leavening agent in bread and crackers. Employed as an antiseptic and germicide for fruit juices, canned goods, brewed items, and cereal food storage. Additionally, it serves as an inhibitor and freshening agent for day lilies, seafood, fruits, and vegetables.
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