Potassium metabisulphite, GR 98%+
Order Potassium metabisulphite, GR 98%+ (CAS 16731-55-8) online at Zemixal. Request a quote with price, lead time and documents.
About Potassium metabisulphite, GR 98%+
Potassium metabisulphite, GR 98%+ is part of the Zemixal alkali Metal Compounds (Li, Na, K, Rb, Cs) range. Key data (AR): CAS 16731-55-8, formula K2O5S2 and molar mass 222.33 g/mol. It is described as white powder.
Typical applications
- Dyes & pigments manufacture
- Textile processing
Safe handling
Recommended storage is room temperature. Hazard communication follows GHS (Danger: H315, H318 and H335). Our SDS lists exposure controls and first-aid measures.
Standard pack sizes are 500 g, 5 kg, 25 kg and 4 x 25 kg, and custom quantities are quoted on request. Each lot travels with 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
- Dyes & pigments manufacture
- Textile processing
Applications
Grade guides
Specifications and identifiers
| Product name | Potassium metabisulphite, GR 98%+ |
|---|---|
| Catalogue number | ZX-013107 |
| CAS number | 16731-55-8 |
| Molecular formula | K2O5S2 |
| Molar mass | 222.33 g/mol |
| Exact mass | 221.8461 |
| Grade | AR |
| Purity / assay | ≥98% |
| Physical form | Powder |
| Appearance | White powder |
| H-bond donors / acceptors | 0 / 6 |
| Topological polar surface area | 125 Ų |
| Storage | Room temperature |
| HS code | 28322010 |
| InChIKey | RWPGFSMJFRPDDP-UHFFFAOYSA-L |
| SMILES | [O-]S(=O)S(=O)(=O)[O-].[K+].[K+] |
| PubChem CID | 28019 |
| Synonyms | Potassium disulfite, Potassium metabisulfite, Potassium pyrosulfite, Dipotassium pyrosulfite, Dipotassium disulfite, Dipotassium metabisulfite, Potassium disulfite (K2S2O5), Potassium pentaoxodisulfate, Pyrosulfurous acid, dipotassium salt, Ins-224, Potassium metabisulfite (e 224), Disulfurous acid, potassium 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
- H315Causes skin irritation
- H318Causes serious eye damage
- H335May cause respiratory irritation
Precautionary statements P261, P264, P264 + P265, P271, P280, P302 + P352, P304 + P340, P305 + P354 + P338, P317, P319, P321, P332 + P317, P362 + P364, P403 + P233, 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 | |
| 4 x 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 Potassium metabisulphite, GR 98%+
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Other grades with CAS 16731-55-8
- CAS
- 16731-55-8
- Formula
- K2O5S2
- MW
- 222.33 g/mol
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