Sodium sulphite, anhydrous, GR 98%+
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About Sodium sulphite, anhydrous, GR 98%+
Zemixal supplies Sodium sulphite, anhydrous, GR 98%+ within its inorganic Chemicals, Metals & Advanced Materials portfolio. For your records (AR), the material is defined by CAS 7757-83-7, formula Na2O3S and molar mass 126.05 g/mol. It is described as white powder or crystals.
Typical applications
- Dyes & pigments manufacture
- Materials research
Handling and storage
It carries the GHS signal word Danger (H302, H314, H315 and H319), so wear gloves and eye protection and work with good ventilation.
Order it in 500 g, 5 kg and 25 kg packs or ask for a bulk quotation. Every shipment includes a batch certificate of analysis and a 16-section SDS. Send an enquiry through the quote panel and you get a formal offer with Incoterms and delivery time.
Typical uses
- Dyes & pigments manufacture
- Materials research
Applications
Grade guides
Specifications and identifiers
| Product name | Sodium sulphite, anhydrous, GR 98%+ |
|---|---|
| Catalogue number | ZX-013298 |
| CAS number | 7757-83-7 |
| IUPAC name | disodium;sulfite |
| Molecular formula | Na2O3S |
| Molar mass | 126.05 g/mol |
| Exact mass | 125.9364 |
| Grade | AR |
| Purity / assay | 98% |
| Physical form | Crystalline |
| Appearance | White powder or 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 | 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, 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 | |
| 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, GR 98%+
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Other grades with CAS 7757-83-7
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- MW
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