Sodium sulphite anhydrous, EP
Buy Sodium sulphite anhydrous, EP (CAS 7757-83-7) from Zemixal. Request a quote with price, lead time and documents. Packs from 500 g.
About Sodium sulphite anhydrous, EP
Sodium sulphite anhydrous, EP sits in our alkali Metal Compounds (Li, Na, K, Rb, Cs) section and ships worldwide from stock or short lead time. Identity at a glance (EP): CAS 7757-83-7, formula Na2O3S and molar mass 126.05 g/mol.
Use cases we see most often
- Materials research
- Chemical synthesis
Storage and safety notes
Hazard communication follows GHS (Danger: H302, H314, H315 and H319). Our SDS lists exposure controls and first-aid measures.
Available as 500 g, 1 kg, 5 kg and 50 kg. Larger or split packs can be arranged. Every shipment includes a batch certificate of analysis and a 16-section SDS. Add it to your quote list and our team replies with price, lead time and shipping options within one business day.
Typical uses
- Materials research
- Chemical synthesis
Applications
Grade guides
Specifications and identifiers
| Product name | Sodium sulphite anhydrous, EP |
|---|---|
| Catalogue number | ZX-038746 |
| CAS number | 7757-83-7 |
| IUPAC name | disodium;sulfite |
| Molecular formula | Na2O3S |
| Molar mass | 126.05 g/mol |
| Exact mass | 125.9364 |
| Grade | EP |
| 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 | Disodium sulfite, Sodium sulfite anhydrous, Sodium sulphite, Sulfurous acid, disodium salt, Natrium sulfurosum, S-WAT, Natrii sulphis, Anhydrous sodium sulfite, Sodium sulfite (Na2SO3), Exsiccated sodium sulfite, Natrum sulphurosum, Sulfurous acid, sodium salt (1:2) |
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 | |
| 50 kg | Quoted on request |
Need a different size? Bulk drums and custom packing are quoted on request through the quote form on this page.
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Other grades with CAS 7757-83-7
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