Sodium Metabisulfite
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Sodium metabisulfite is an inorganic salt with the formula Na2S2O5. It's commonly used as a food preservative, antioxidant, and disinfectant.Product Details |
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Formula: |
Na2S2O5 |
CAS Number: |
7681-57-4 |
Also Known As: |
Sodium disulfite; Sodium pyrosulfite; Disodium pyrosulfite |
applications:
Sodium metabisulfite is widely used in textile dyeing, photography, paper industry and as a laboratory reagent. It is also commonly added to various food products and wines as a preservative.Typical Specifications
Data is representative of average lots;
data taken from specific lots may vary.
Appearance |
White to yellow powder |
Density, g/cm3 |
1.48 |
Melting point, °C |
>300 |
Molecular weight, g/mol |
190.11 |
Odor |
Pungent or acrid odor |
Purity, % |
>98 |
Refractive index, n20/D |
1.474 |
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