Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

11615

Sigma-Aldrich

Boric anhydride

granulated, ≥98.0% (T)

Synonym(s):

Boron trioxide

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Empirical Formula (Hill Notation):
B2O3
CAS Number:
1303-86-2
Molecular Weight:
69.62
EC Number:
215-125-8
MDL number:
MFCD00011315
UNSPSC Code:
12352306
eCl@ss:
38120103
PubChem Substance ID:
57646939
NACRES:
NA.21

vapor density

>1 (vs air)

Quality Level

100

Assay

≥98.0% (T)
98.0-102.0% (titration)

form

solid

quality

granulated

loss

≤3% loss on ignition, 800 °C

mp

450 °C (lit.)

density

2.46 g/mL at 25 °C (lit.)

cation traces

Fe: ≤300 mg/kg

SMILES string

O=BOB=O

InChI

1S/B2O3/c3-1-5-2-4

InChI key

JKWMSGQKBLHBQQ-UHFFFAOYSA-N

Looking for similar products? Visit Product Comparison Guide

Application

Boric anhydride also referred to as boron trioxide or boron oxide (B2O3) has been used for preparing specimens of Bi4B2O9 ceramics. It has also been used for WO3/B2O3/Al system for investigating the impact of Ar gas pressure on the SHS reaction products.

Biochem/physiol Actions

Boric anhydride is an oxide of boron that shows antimicrobial property along with lower aminoalcohols.

Pictograms

Health hazard
GHS08

Signal Word

Danger

Hazard Statements

H360FD

Hazard Classifications

Repr. 1B

Storage Class Code

6.1D - Non-combustible acute toxic Cat.3 / toxic hazardous materials or hazardous materials causing chronic effects

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
BCCK9122
BCCH5394
BCCG4192
BCCF5338
BCCD2847

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Customers Also Viewed

Slide 1 of 1

1 of 1

Boric acid BioReagent, for molecular biology, suitable for cell culture, suitable for plant cell culture, ≥99.5%

Sigma-Aldrich

B6768

Boric acid

Antimicrobial properties of the products from the reaction of various aminoalcohols and boric anhydride.
S Watanabe
Materials Chemistry and Physics, 19, 191-195 (1988)
Effect of Bi4B2O9 addition on the sintering temperature and microwave dielectric properties of BaO-Nd2O3-4TiO2 ceramics.
Xingyu Chen
Journal of Materials Science: Materials in Electronics, 24, 224-229 (2013)
Influence of Ar Pressure on Product Characteristics of Self-Propagating High-Temperature Synthesis from WO3/B2O3/Al Reactant System.
Tawat Chanadee et al.
Advanced Materials Research, 748, 32-35 (2013)
Virendra K Parashar et al.
Nature nanotechnology, 3(10), 589-594 (2008-10-08)
Nanoparticles play an important role in chemical and biological sciences due to their ability to bind and concentrate many molecules on their surface. Polymers and silica are widely used to make nanoparticles, but efforts to make nanoparticles from borosilicate glass--which
Ozcan Yalçinkaya et al.
Journal of hazardous materials, 195, 332-339 (2011-09-06)
New nano hybrid material (ZrO(2)/B(2)O(3)) was synthesized and applied as a sorbent for the separation and/or preconcentration of Co(II), Cu(II) and Cd(II) in water and tea leaves prior to their determination by flame atomic absorption spectrometry. Synthesized nano material was
View All Related Papers

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service