Sodium Sulphite
Also known as Disodium sulfite, Sodium sulfite anhydrous, Sulfurous acid, disodium salt
- CAS number
- 7757-83-7
- Molecular formula
- Na2O3S
- Molecular weight
- 126.05 g/mol
- Catalogue number
- OS-11857
- Purity
- 99 %
- Grade
- Industrial
- Form
- Powder
- Packing
- 25 kg
₹500 per kg
Documents
- Certificate of analysis (COA) On request
- Safety data sheet (MSDS) On request
Specifications
| CAS number | 7757-83-7 |
|---|---|
| Molecular formula | Na2O3S |
| Molecular weight | 126.05 g/mol |
| IUPAC name | disodium;sulfite |
| InChIKey | GEHJYWRUCIMESM-UHFFFAOYSA-L |
| SMILES | [O-]S(=O)[O-].[Na+].[Na+] |
| EC number | 231-821-4 |
| MDL number | MFCD00003503 |
| PubChem CID | 24437 |
| Physical form | Powder |
|---|---|
| Colour | White |
| Solubility | Water Soluble |
| Hydration state | Heptahydrate |
| Purity | 99 % |
|---|---|
| Grade | Industrial |
| Packaging size | 25 kg |
|---|---|
| Packaging type | HDPE Bag |
Description and applications
Sodium sulphite is an odorless, white crystalline solid with the chemical formula Na2SO3, functioning primarily as a water-soluble reducing agent and antioxidant. Chemical Properties
- Formula: Na2SO3
- Appearance: White powder or crystal
- Taste: Salty, sulfurous taste
- Solubility: Soluble in water
- pH: Alkaline in solution (around 9 to 11 for a 10 % solution)
Applications
- Textile
- Water Treatment
- Pulp
- Paper
- Food Preservative
- Photographic
More sulfites, bisulfites & thiosulfates
All 13 sulfites, bisulfites & thiosulfates-
99 %
-
65 %
-
Ammonium Sulphite
Ammonium sulfite monohydrate, Diammonium sulfite monohydrate
CAS 7783-11-1 H10N2O4S 40 wt% -
ATS 12-0-0-26S
-
Calcium Thiosulphate
Calcium hyposulfite, Calcium thiosulfate (Ca(S2O3))
CAS 10124-41-1 CaO3S2 99 % -
99 %
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