Sodium metasilicate (SiO2, 50-53%)
Buy Sodium metasilicate (SiO2, 50-53%) (CAS 6834-92-0) from Zemixal: Na2O3Si, COA and SDS with every lot, worldwide shipping.
About Sodium metasilicate (SiO2, 50-53%)
Sodium metasilicate (SiO2, 50-53%) 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: CAS 6834-92-0, formula Na2O3Si and molar mass 122.06 g/mol. Typical appearance is white powder or beads.
Use cases we see most often
- Ceramics & glass
- Surfactants & detergency
Safe handling
It carries the GHS signal word Danger (H314 and H335), so wear gloves and eye protection and work with good ventilation.
Order it in 1 kg, 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.
Specifications and identifiers
| Product name | Sodium metasilicate (SiO2, 50-53%) |
|---|---|
| Catalogue number | ZX-013235 |
| CAS number | 6834-92-0 |
| IUPAC name | disodium;dioxido(oxo)silane |
| Molecular formula | Na2O3Si |
| Molar mass | 122.06 g/mol |
| Exact mass | 121.9412 |
| Physical form | Granules |
| Appearance | White powder or beads |
| H-bond donors / acceptors | 0 / 3 |
| Topological polar surface area | 63.2 Ų |
| HS code | 29420090 |
| InChIKey | NTHWMYGWWRZVTN-UHFFFAOYSA-N |
| SMILES | [O-][Si](=O)[O-].[Na+].[Na+] |
| PubChem CID | 23266 |
| Synonyms | Disodium metasilicate, Disodium silicate, Sodium silicate, Sodium silicon oxide, Sodium siliconate, Sodium sesquisilicate, Sodium silicate glass, Sodium water glass, Soluble glass, Silicic acid, sodium salt, Agrosil S, Agrosil LR |
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
- H314Causes severe skin burns and eye damage
- H335May cause respiratory irritation
Precautionary statements P260, P261, P264, P271, P280, P301 + P330 + P331, P302 + P361 + P354, P304 + P340, P305 + P354 + P338, P316, P319, P321, P363, 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
| 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 metasilicate (SiO2, 50-53%)
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Other grades with CAS 6834-92-0
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