| Customization: | Available |
|---|---|
| CAS No.: | 7681-57-4 |
| Formula: | Na2s2o5 |
|
Still deciding? Get samples of $ !
Request Sample
|
Suppliers with verified business licenses
Audited Supplier Audited by an independent third-party inspection agency
Premium Economical Food Preservatives: Sodium Metabisulfite
Sodium Metabisulfite Sodium Metabisulfite is a white or yellow crystalline powder, known for its distinct, robust sulfur dioxide (SO2) odor. With a specific gravity of 1.4, it dissolves effortlessly in water, rendering an acidic aqueous solution. When sodium metabisulfite encounters a strong acid, it releases SO2 to form a corresponding salt. Exposure to air leads to its oxidation. The chemical formula is Na2S2O5, indicating that it is not suitable for prolonged storage. At temperatures above 150 degrees Celsius, SO2 decomposes, releasing sulfur dioxide.
|
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: It serves as a bleach agent in candies, cakes, and bamboo shoots. As a leavening agent, it is beneficial in products like bread and crackers. It acts as an antiseptic and germicide in fruit juices, canned foods, and cereals, enhancing their defense during storage. Furthermore, it functions as an inhibitor and freshness agent in various products including day lilies, seafood, fruits, and vegetables.
Packing & Shipment:
Frequently Asked Questions (FAQ):
){kind=link}