Boron Oxide (B2O3)-Powder introduce:
Boron trioxide (or diboron trioxide) is one of the oxides of boron. It is a white, glassy solid with the formula B2O3. It is almost always found as the vitreous (amorphous) form.
Molar mass：69.6182 g/mol
Appearance：white, glassy solid
Density：2.460 g/cm3, liquid;
2.55 g/cm3, trigonal;
3.11–3.146 g/cm3, monoclinic
Melting point：450 °C (842 °F; 723 K) (trigonal)
510 °C (tetrahedral)
Boiling point：1,860 °C (3,380 °F; 2,130 K) ,
sublimes at 1500 °C
Solubility in water：1.1 g/100mL (10 °C)
3.3 g/100mL (20 °C)
15.7 100 g/100mL (100 °C)
Solubility：partially soluble in methanol
Fluxing agent for glass and enamels.
Starting material for synthesizing other boron compounds such as boron carbide.
An additive used in glass fibres (optical fibres).
Component used in the production of borosilicate glass.
The inert capping layer in the Liquid Encapsulation Czochralski process for the production of gallium arsenide single crystal.
As an acid catalyst in organic synthesis.
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