Sodium sulphite, anhydrous, 98%
Sodium sulphite, anhydrous, 98% (CAS 7757-83-7) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-013297.
About Sodium sulphite, anhydrous, 98%
Sodium sulphite, anhydrous, 98% is part of the Zemixal alkali Metal Compounds (Li, Na, K, Rb, Cs) range. Key data (Extra Pure): CAS 7757-83-7, formula Na2O3S and molar mass 126.05 g/mol. Typical appearance is white powder to crystals.
Use cases we see most often
- Pharmaceutical synthesis
- Fine chemical synthesis
- Food & flavour applications
- Textile processing
Storage and safety notes
Hazard communication follows GHS (Danger: H302, H314, H315 and H319). Our SDS lists exposure controls and first-aid measures.
Standard pack sizes are 500 g, 1 kg, 5 kg and 25 kg, and custom quantities are quoted on request. Every shipment includes a batch certificate of analysis and a 16-section SDS. Request pricing online and we confirm availability, documentation and freight to your country.
Typical uses
- Pharmaceutical synthesis
- Fine chemical synthesis
- Food & flavour applications
- Textile processing
Applications
Grade guides
Specifications and identifiers
| Product name | Sodium sulphite, anhydrous, 98% |
|---|---|
| Catalogue number | ZX-013297 |
| CAS number | 7757-83-7 |
| IUPAC name | disodium;sulfite |
| Molecular formula | Na2O3S |
| Molar mass | 126.05 g/mol |
| Exact mass | 125.9364 |
| Grade | Extra Pure |
| Purity / assay | 98% |
| Physical form | Crystalline |
| Appearance | White powder to crystals |
| H-bond donors / acceptors | 0 / 4 |
| Topological polar surface area | 82.4 Ų |
| HS code | 28321090 |
| InChIKey | GEHJYWRUCIMESM-UHFFFAOYSA-L |
| SMILES | [O-]S(=O)[O-].[Na+].[Na+] |
| PubChem CID | 24437 |
| Synonyms | Hypo clear(photography), Disodium sulfite, Sodium sulfite anhydrous, Sulfurous acid, disodium salt, Natrium sulfurosum, S-WAT, Natrii sulphis, Anhydrous sodium sulfite, Sodium sulfite (Na2SO3), Exsiccated sodium sulfite, Natrum sulphurosum, Sodium sulphite anhydrous |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Danger
- H302Harmful if swallowed
- H314Causes severe skin burns and eye damage
- H315Causes skin irritation
- H319Causes serious eye irritation
Precautionary statements P260, P264, P264 + P265, P270, P280, P301 + P317, P301 + P330 + P331, P302 + P352, P302 + P361 + P354, P304 + P340, P305 + P351 + P338, P305 + P354 + P338, P316, P321, P330, P332 + P317, P337 + P317, P362 + P364, P363, P405, P501
Classification summarised from public GHS notifications. It can vary with grade and concentration, so always follow the SDS supplied with your lot.
Pack sizes
| 500 g | Quoted on request | |
| 1 kg | Quoted on request | |
| 5 kg | Quoted on request | |
| 25 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
Questions about Sodium sulphite, anhydrous, 98%
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Other grades with CAS 7757-83-7
Related products
More in Alkali Metal Compounds (Li, Na, K, Rb, Cs)
- CAS
- 1303-96-4
- Formula
- B4H20Na2O17
- MW
- 381.4 g/mol
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