Netica Solution

Boron trioxide

Other names
boron oxide, diboron trioxide, boron sesquioxide, boric oxide, boria, anhydric boric acid
Identifiers
CAS number
Properties
Molecular formula
B2O3
Molar mass
69.6182 g/mol
Appearance
clear, glassy solid
Density
1.85 g/cm3, glass;
2.460 g/cm3, liquid;
2.55 g/cm3, trigonal;
3.11–3.146 g/cm3, monoclinic
Melting point
480 °C
Boiling point
1680 °C
Solubility in water
2.2 g/100 g
Related compounds
Related compounds
B2O2.5;
B2O3·H2O (metaborite)
Supplementary data page
Structure and
properties
n, εr, etc.
Thermodynamic
data
Phase behaviour
Solid, liquid, gas
Spectral data
UV, IR, NMR, MS
Except where noted otherwise, data [...]