| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
|
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Discover the pinnacle of quality with our Premium Economical Food Preservatives: Sodium Metabisulfite.
Sodium Metabisulfite This remarkable compound presents itself as a white or yellow crystalline powder or small crystals, exuding a distinct SO2 aroma. With a specific gravity of 1.4, it easily dissolves in water, rendering the solution acidic. In contact with strong acids, it liberates SO2, forming corresponding salts. Left in the open air, it tends to oxidize. Composed of Na2S2O5, its longevity is limited. The compound decomposes upon reaching temperatures above 150°C, 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: Our versatile product serves as a bleaching agent for candies, cakes, bamboo shoots, and more. As a leavening agent, it's perfect for bread and crackers. It acts as an antiseptic and germicide for items like fruit juices, canned foods, and preserved cereals. Additionally, it functions as an inhibiting and freshening agent for day lilies, seafood, fruits, and vegetables.
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