Sodium bisulphite
Order Sodium bisulphite (CAS 7631-90-5) online at Zemixal. Lab and bulk packs, batch COA, fast global delivery. Exported from India with full paperwork.
About Sodium bisulphite
Zemixal supplies Sodium bisulphite within its inorganic Chemicals, Metals & Advanced Materials portfolio. Identity at a glance (≥58.0%): CAS 7631-90-5, formula HNaO3S and molar mass 104.06 g/mol. Typical appearance is powder or crystalline or crystalline powder.
Use cases we see most often
- Food & flavour applications
- Materials research
Storage and safety notes
Classified under GHS with signal word Warning and hazard statements H302. Read the SDS before first use.
Available as 500 g, 5 kg, 25 kg and 4 x 50 kg. Larger or split packs can be arranged. 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.
Specifications and identifiers
| Product name | Sodium bisulphite |
|---|---|
| Catalogue number | ZX-013177 |
| CAS number | 7631-90-5 |
| IUPAC name | sodium hydrogen sulfite |
| Molecular formula | HNaO3S |
| Molar mass | 104.06 g/mol |
| Exact mass | 103.9544 |
| Purity / assay | ≥58.0% |
| Physical form | Crystalline |
| Appearance | Powder or crystalline or crystalline powder |
| H-bond donors / acceptors | 1 / 4 |
| Topological polar surface area | 79.6 Ų |
| HS code | 28321010 |
| InChIKey | DWAQJAXMDSEUJJ-UHFFFAOYSA-M |
| SMILES | OS(=O)[O-].[Na+] |
| PubChem CID | 23665763 |
| Synonyms | Sodium bisulfite, sodium hydrogensulfite, Monosodium sulfite, Sulfurous acid, monosodium salt, Sodium sulhydrate, Uantax SBS, Hydrogen sodium sulfite, Hydrogen sulfite sodium, Monosodic sulphite, Sodium hydrosulfite(DOT), Bisulfite de sodium, Sodium bisulfite (1:1) |
Lot values are stated on the batch certificate of analysis. Ask for a typical COA with your quotation.
Safety and GHS hazards
Signal word Warning
- H302Harmful if swallowed
Precautionary statements P264, P270, P301 + P317, P330, 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 | |
| 4 x 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.
Questions about Sodium bisulphite
Which CAS number identifies Sodium bisulphite?
What are the formula and molar mass of Sodium bisulphite?
What grade and pack sizes are available for Sodium bisulphite?
Which documents come with Sodium bisulphite?
Can Zemixal ship Sodium bisulphite to my country?
Other grades with CAS 7631-90-5
- CAS
- 7631-90-5
- Formula
- HNaO3S
- MW
- 104.06 g/mol
Related products
More in Alkali Metal Compounds (Li, Na, K, Rb, Cs)
Have a list of compounds to price?
Paste up to 200 CAS numbers into Bulk CAS lookup, or send one enquiry for everything in your quote list. We reply with price, lead time and documents.