Boric anhydride

CAS

1303-86-2

Catalog Number

ACM1303862

Category

Nanoparticles & Nanopowders

Molecular Weight

69.617g/mol

Molecular Formula

B2O3;B2O3;B2O3;

MSDS COA Spec Sheet

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Specification

Synonyms

Boric anhydride, 99.98% trace metals basis; JKWMSGQKBLHBQQ-UHFFFAOYSA-N; Diboron trioxide; Boric anhydride, purum p.a., >=97.0% (T); CHEBI:30163; boron(III) oxide; Boric anhydride, puriss. p.a., >=98% (T); AKOS015903863; FT-0694863; Boric anhydride, Vetec(TM) reagent grade, 98%;

IUPAC Name

oxo(oxoboranyloxy)borane;

Canonical SMILES

B(=O)OB=O;

InChI

InChI=1S/B2O3/c3-1-5-2-4;

InChI Key

JKWMSGQKBLHBQQ-UHFFFAOYSA-N;

Melting Point

842 ° F (NIOSH, 2016);450 deg C (crystal);450 °C;842°F;842°F;

Density

2.46 (NIOSH, 2016);1.8 g/cu cm (amorphous); 2.46 g/cu cm (crystal);Relative density (water = 1): 2.46 (cryst);2.46;2.46;

Solubility

3 % (NIOSH, 2016);Slowly soluble in 30 parts cold water; slowly soluble in 5 parts boiling water; soluble in alcohol, glycerol;Water solubility: 4.0% at 20 deg C;2.77 g/100 g water at 20 deg C.;Solubility in water, g/l at 25 °C: 36 (moderate);3%;

Application

Boron oxide was used as the intermediate glass layer at a bonding temperature of 450°C. In preparation of fluxes; component of enamels and glass; catalyst in organic reaction.

In metallurgy; in analysis of silicates to determine SiO2 and alkalies; in blowpipe analysis.

Storage

Store at room temperature.

Color/Form

Colorless, brittle, vitreous, semitransparent lumps or hard, white crystals;Colorless, glassy or hexagonal crystals, hygroscopic;Colorless powder or vitreous crystals;

Complexity

34.2

Corrosivity

Very corrosive to metals in the presence of oxygen;

Covalently-Bonded Unit Count

EC Number

215-125-8

Exact Mass

70.003g/mol

H-Bond Acceptor

Heavy Atom Count

ICSC Number

0836

Monoisotopic Mass

70.003g/mol

Odor

Odorless;

Other Experimental

Enthalpy of fusion: 24.56 kJ/mol at 450 deg C;Standard enthalpy of formation: -1273.5 kJ/mol (crystal); -843.8 kJ/mol (gas); molar heat capacity at 25 deg C: 62.8 J/K mol (crystal); 66.9 J/K mol (gas);Mohs' hardness: 4; mildly hygroscopic at room temperature; reaction with water is exothermic, -75.94 kJ/mol;Slowly reacts with water to form boric acid;Colorless, vitreous crystals; solubility: in water at 0 deg C 1.1 g/100 cu cm, at 100 deg C 15.7 g/100 cu cm; sol in acid, alcohol. Index of refraction: 1.485; MP: approx 450 deg C; Density: 1.812 at 25 deg C at 4 deg C /oxide glass/;Heat of vaporization: 390.4 kJ/mol at 1500 K; 431.4 kJ/mol at 298 K; boiling point: 2316 deg C (extrapolated); viscosity: 10.60 cP at 350 deg C; 4.96 cP at 700 deg C; 4.00 at 1000 deg C; density: 1.8766 g/mL at 0 deg C; 1.844 g/mL at 18-25 deg C; 1.81 g/mL at 18-25 deg C (well-annealed); 1.648 g/mL at 500 deg C (quenched); 1.528 g/mL at 1000 deg C (quenched); index of refraction: 1.463 at 14.4 deg C; specific heat capacity: 62.969 J/kg K at 298 K; heat of formation: -1252.2 kJ at 298.15 K /Vitreous boric oxide/;

pH = 5.1 at 20 deg C 1.0% solution;

Physical Description

BORON OXIDE is a colorless, semi-transparent glassy lumps or hard white odorless crystals. Mp 450°C; bp: 1860°C. Density: 2.46 g cm-3. Moderately soluble in water. Used as an insecticide; as the starting material for the synthesis of other boron compounds; as a fluxing agent in enamels and glasses; and in mixture with 2-6% boron nitride, as a bonding agent in the hot isostatic pressing of boron nitride ceramics.;DryPowder; DryPowder, PelletsLargeCrystals; PelletsLargeCrystals;WHITE HYGROSCOPIC POWDER OR GRANULES;Colorless, semitransparent lumps or hard, white, odorless crystals.;Colorless, semitransparent lumps or hard, white, odorless crystals.;

RTECS Number

ED7900000

Stability

Keep dry;

Topological Polar Surface Area

43.4A^2

Vapor Pressure

0 mm Hg (approx) (NIOSH, 2016);Negligible at 20 deg C;0 mmHg (approx);0 mmHg (approx);

March 7, 2023

Work good in environmental protection
In the process of selective reduction of ketones to hydrocarbons by using triethylsilane and boron trifluoride, Boric anhydride can be used as a detergent to remove the formed by-product hydrogen fluoride gas.

What is the molecular formula of boric anhydride?

The molecular formula of boric anhydride is B2O3.

What is the molecular weight of boric anhydride?

The molecular weight of boric anhydride is 69.63 g/mol.

What is the IUPAC name of boric anhydride?

The IUPAC name of boric anhydride is oxo(oxoboranyloxy)borane.

What is the InChI of boric anhydride?

The InChI of boric anhydride is InChI=1S/B2O3/c3-1-5-2-4.

What is the InChIKey of boric anhydride?

The InChIKey of boric anhydride is JKWMSGQKBLHBQQ-UHFFFAOYSA-N.

What are some synonyms for boric anhydride?

Some synonyms for boric anhydride include Boron trioxide, Boric oxide, and Diboron trioxide.