Boron trioxide, 99%

Name: Boron trioxide, 99%
Brand: Vaqora Chemicals
SKU: VQ-001654

About Boron trioxide, 99%

Listed under CAS 1303-86-2, Boron trioxide is an adsorbent available from Vaqora Chemicals (Synthesis grade) at a purity of 99%. Its molecular formula is B2O3 and its molecular weight is 69.63 g/mol. Systematically, it is named 2,4,5-trioxa-1,3-diborabicyclo[1.1.1]pentane. It is also known as Boric anhydride or Boric Oxide.

The material typically appears as white powder or crystal or chunks. Reported physical data include a melting point of 450 °C and a density of 2.46 g/mL at 25 °C. Store sealed in a dry, well-ventilated location away from incompatible materials. It carries the GHS signal word “Danger” with 0 hazard statements. Review the Safety Data Sheet before use.

Typical applications include column chromatography, adsorption and purification, drying and decolourising and ceramics and glass. Typical end-use sectors are academic and industrial research.

We offer Boron trioxide in 250 g, 500 g, 5 kg and 4 x 25 kg packs with a batch-specific COA, and ship to customers worldwide.

Typical applications

Column chromatography
Adsorption & purification
Drying & decolourising
Ceramics & glass

Industries

Specifications & identifiers

Chemical identifiers
Product name	Boron trioxide, 99%
Catalogue No.	VQ-001654
CAS Number	1303-86-2
IUPAC name	2,4,5-trioxa-1,3-diborabicyclo[1.1.1]pentane
Molecular formula	B₂O₃
Molecular weight	69.63 g/mol
Exact mass	70.0034
Grade	Synthesis
Purity / assay	99%
HSN code	28100010
InChIKey	RPPTVYMVSNHGRG-UHFFFAOYSA-N
SMILES	B12OB(O1)O2
PubChem CID	11073337

Physical properties
Physical form	Crystalline
Appearance	White powder or crystal or chunks
Melting point	450 °C
Density	2.46 g/mL at 25 °C
H-bond donors / acceptors	0 / 3
TPSA	27.7 Å²
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)

Safety & hazard information (GHS)

Health hazard

Signal word: Danger

Precautionary statements: P203, P280, P318, P405, P501

Classification is indicative (aggregated GHS notifications) and may vary by grade and concentration. Always refer to the SDS supplied with your lot.

Documents

Safety Data Sheet (SDS)16-section GHS · on request Certificate of AnalysisTypical / batch COA · on request Specification sheetTDS / MOA · on request

Other grades of CAS 1303-86-2

Boric anhydride, granulated, 98%

CAS: 1303-86-2
Formula: B₂O₃
MW: 69.63 g/mol

VQ-015207

Boron oxide nanopowder, APS 40-80 nm, 98%

CAS: 1303-86-2
Formula: B₂O₃
MW: 69.63 g/mol

VQ-017446

Boron trioxide, 99.98%

CAS: 1303-86-2
Formula: B₂O₃
MW: 69.63 g/mol

VQ-001655

Boron trioxide, 99.999%

CAS: 1303-86-2
Formula: B₂O₃
MW: 69.63 g/mol

VQ-001656

Electronic

Boron trioxide, electronic grade 99.90%

CAS: 1303-86-2
Formula: B₂O₃
MW: 69.63 g/mol

VQ-047101

AR

Boron trioxide, GR 99%+

CAS: 1303-86-2
Formula: B₂O₃
MW: 69.63 g/mol

VQ-001657

Frequently asked questions

What is the CAS number of Boron trioxide, 99%?

The CAS Registry Number of Boron trioxide, 99% is 1303-86-2. It is also known as Boric anhydride, Boric Oxide, Diboron Trioxide.

What is the molecular formula and molecular weight of Boron trioxide, 99%?

Boron trioxide, 99% has the molecular formula B2O3 and a molecular weight of 69.63 g/mol. Its IUPAC name is 2,4,5-trioxa-1,3-diborabicyclo[1.1.1]pentane.

Which grade and pack sizes of Boron trioxide, 99% can I order?

We supply Boron trioxide, 99% in Synthesis (99%) grade, in 250 g, 500 g, 5 kg, 4 x 25 kg packs. Larger bulk quantities and custom packing are quoted on request.

Do you provide a COA and SDS with Boron trioxide, 99%?

Yes. Every lot of Boron trioxide, 99% is shipped with a batch-specific Certificate of Analysis, and a 16-section GHS Safety Data Sheet is provided with the quotation and the shipment.

Can Boron trioxide, 99% be shipped internationally?

Yes. Boron trioxide, 99% is classified as hazardous, so it is packed in UN-approved packaging and shipped as dangerous goods under IATA/IMDG rules. We export worldwide on EXW, FOB, CIF and DAP terms.