| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
|
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Introducing our Premium Economical Food Preservatives: Sodium Metabisulfite - a cornerstone of food preservation excellence!
Experience the remarkable properties of Sodium Metabisulfite. This versatile compound appears as a pristine white or gentle yellow crystalline powder with a distinctive and robust SO2 aroma. Featuring a specific gravity of 1.4, it dissolves seamlessly in water, rendering an acidic aqueous solution. In the presence of potent acids, it liberates SO2 to form a corresponding salt. Note that exposure to air leads to oxidation, and being comprised of Na2S2O5, it requires careful storage due to its non-long-term nature. At temperatures exceeding 150°C, 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, it enhances the appearance of candies, cakes, bamboo shoots, and more. Serving as a leavening agent, it adds loft to breads and crackers. It acts as a potent antiseptic and germicide in fruit juices, canned goods, brews, and cereals for optimal defense and storage. Additionally, it is a reliable inhibitor and freshening agent for day lilies, seafood, fruits, and vegetables alike.
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