Boron trioxide, 99.999%
Boron trioxide, 99.999% (CAS 1303-86-2) supplier Zemixal. Lab and bulk packs, batch COA, fast global delivery. Catalogue no. ZX-001656.
About Boron trioxide, 99.999%
Boron trioxide, 99.999% sits in our adsorbents, Ion Exchangers & Molecular Sieves section and ships worldwide from stock or short lead time. Identity at a glance (99.999%): CAS 1303-86-2, formula B2O3 and molar mass 69.63 g/mol. Expect white powder.
Use cases we see most often
- Column chromatography
- Adsorption & purification
- Drying & decolourising
- Fine chemical synthesis
Handling and storage
Physical constants on file: melting point 450 °C and density 2.46 g/mL at 25 °C. Handle with the usual laboratory precautions and consult the SDS supplied with each lot.
Available as 2 g, 10 g, 50 g and 1 kg. Larger or split packs can be arranged. 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
- Column chromatography
- Adsorption & purification
- Drying & decolourising
- Fine chemical synthesis
Applications
Specifications and identifiers
| Product name | Boron trioxide, 99.999% |
|---|---|
| Catalogue number | ZX-001656 |
| CAS number | 1303-86-2 |
| IUPAC name | 2,4,5-trioxa-1,3-diborabicyclo[1.1.1]pentane |
| Molecular formula | B2O3 |
| Molar mass | 69.63 g/mol |
| Exact mass | 70.0034 |
| Purity / assay | 99.999% |
| Physical form | Powder |
| Appearance | White powder |
| Melting point | 450 °C |
| Density | 2.46 g/mL at 25 °C |
| H-bond donors / acceptors | 0 / 3 |
| Topological polar surface area | 27.7 Ų |
| HS code | 28100010 |
| InChIKey | RPPTVYMVSNHGRG-UHFFFAOYSA-N |
| SMILES | B12OB(O1)O2 |
| PubChem CID | 11073337 |
| Synonyms | Boric anhydride, Boric oxide, Diboron trioxide, Boron sesquioxide, Boron Oxydatum, Fused boric acid, Boric oxide (B2O3), Boric acid (HBO2), anhydride, B2O3, Boron oxide, Boron oxide (B2O3), Boron oxide (99.6%-B) |
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
Precautionary statements P203, P280, P318, 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
| 2 g | Quoted on request | |
| 10 g | Quoted on request | |
| 50 g | Quoted on request | |
| 1 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 Boron trioxide, 99.999%
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