Boric anhydride

Name: Boric anhydride
Brand: SIAL
Price: 129 USD
Availability: InStock

granulated, ≥98.0% (T)

Synonym(s):

Boron trioxide

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About This Item

Empirical Formula (Hill Notation):

B₂O₃

CAS Number:

1303-86-2

Molecular Weight:

69.62

PubChem Substance ID:

57646939

eCl@ss:

38120103

UNSPSC Code:

12352306

NACRES:

NA.21

EC Number:

215-125-8

MDL number:

MFCD00011315

Assay:

≥98.0% (T), 98.0-102.0% (titration)

Form:

solid

Key Documents

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InChI key

JKWMSGQKBLHBQQ-UHFFFAOYSA-N

InChI

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

SMILES string

O=BOB=O

vapor density

>1 (vs air)

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

Quality Level

100

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This Item	202851	15678	1.00169
Sigma-Aldrich 11615 Boric anhydride	Sigma-Aldrich 202851 Boric anhydride	Sigma-Aldrich 15678 Boric anhydride	Supelco 1.00169 di-Boron trioxide
form solid	form crystals or chunks	form solid	form solid
assay ≥98.0% (T), 98.0-102.0% (titration)	assay 99.999% trace metals basis	assay ≥98% (T)	assay ≥99.0% (from ignited substance), 99.9995%
Quality Level 100	Quality Level 100	Quality Level 100	Quality Level 100
cation traces Fe: ≤300 mg/kg	cation traces -	cation traces Ag: ≤5 mg/kg, Al: ≤50 mg/kg, Ba: ≤5 mg/kg, Bi: ≤5 mg/kg, Ca: ≤10 mg/kg, Cd: ≤5 mg/kg, Co: ≤5 mg/kg, Cr: ≤5 mg/kg, Cu: ≤5 mg/kg, Fe: ≤5 mg/kg, K: ≤30 mg/kg, Mg: ≤20 mg/kg, Mn: ≤5 mg/kg, Mo: ≤5 mg/kg, Na: ≤200 mg/kg, Ni: ≤5 mg/kg, Pb: ≤30 mg/kg, Sr: ≤5 mg/kg, Tl: ≤10 mg/kg, Zn: ≤5 mg/kg	cation traces Ag: ≤0.020 ppm, Al: ≤0.050 ppm, As: ≤0.010 ppm, Au: ≤0.010 ppm, Ba: ≤0.020 ppm, Be: ≤0.010 ppm, Ca: ≤0.100 ppm, Cd: ≤0.010 ppm, Co: ≤0.010 ppm, Cr: ≤0.020 ppm, Cu: ≤0.020 ppm, Fe: ≤0.050 ppm, In: ≤0.010 ppm, K: ≤0.20 ppm, Li: ≤0.010 ppm, Mg: ≤0.050 ppm, Mn: ≤0.010 ppm, Mo: ≤0.020 ppm, Na: ≤0.20 ppm, Ni: ≤0.020 ppm, Pb: ≤0.020 ppm, Sr: ≤0.020 ppm, Tl: ≤0.010 ppm, V: ≤0.020 ppm, Zn: ≤0.050 ppm
mp 450 °C (lit.)	mp 450 °C (lit.)	mp 450 °C (lit.)	mp 450 °C
density 2.46 g/mL at 25 °C (lit.)	density 2.46 g/mL at 25 °C (lit.)	density 2.46 g/mL at 25 °C (lit.)	density 2.46 g/cm³ at 20 °C

Application

Boric anhydride also referred to as boron trioxide or boron oxide (B₂O₃) has been used for preparing specimens of Bi₄B₂O₉ceramics. 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

GHS08

signalword

Danger

hcodes

H360FD

pcodes

P201 - P202 - P280 - P308 + P313 - P405 - P501

Hazard Classifications

Repr. 1B

Storage Class

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

ppe

dust mask type N95 (US), Eyeshields, Gloves

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Antimicrobial properties of the products from the reaction of various aminoalcohols and boric anhydride.

S Watanabe

Materials Chemistry and Physics, 19, 191-195 (1988)

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)

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)

Synthesis of nano B2O3/TiO2 composite material as a new solid phase extractor and its application to preconcentration and separation of cadmium.

Orhan Murat Kalfa et al.

Journal of hazardous materials, 166(1), 455-461 (2009-01-13)

A new solid phase extractor, nano-scale diboron trioxide/titanium dioxide composite material, was synthesized and used for separation and/or preconcentration of trace cadmium ion from various samples. The characterization of the synthesized material was performed by scanning electron microscope (SEM), transmission

A 90-day intravenous administration toxicity study of CaO-SiO2-P2O5-B2O3 glass-ceramics (BGS-7) in rat.

Jae Hyup Lee et al.

Drug and chemical toxicology, 33(1), 38-47 (2009-12-10)

CaO-SiO(2)-P(2)O(5)-B(2)O(3) glass ceramics directly bond to bone and have potential use as a bone substitute material. The present study evaluated the toxicity from subchronic intravenous administration of CaO-SiO(2)-P(2)O(5)-B(2)O(3) glass ceramics to male and female Sprague-Dawley rats. The rats were divided

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