| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
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Discover the Premium Economical Solution in Food Preservation with Sodium Metabisulfite
Sodium Metabisulfite Sodium Metabisulfite graces the market as a versatile white or yellow crystalline powder, or in small crystal form, distinguished by a robust SO2 aroma. With a specific gravity of 1.4, it boasts solubility in water, rendering its aqueous solution delightfully acidic. On encountering strong acids, it elegantly releases SO2, transforming into a corresponding salt. Though a powerhouse, it oxidizes when exposed to air, limiting long-term storage. With its chemical identity as Na2S2O5, it decomposes to release SO2 when temperatures soar beyond 150 degrees Celsius.
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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 candies, cakes, and bamboo shoots; a leavening agent for bread and crackers; an antiseptic and germicide in fruit juices, canned foods, brews, and cereals; and as an inhibitor and freshening agent for day lilies, seafood, fruits, and vegetables.
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