Boron Oxide (Glassy Crystal) (R6456)

Boron oxide (diboron trioxide) can be found in amorphous glassy form and in crystalline form with two different forms.
Its amorphous form is a colorless, odorless, hard, glassy solid and is generally produced by the dehydration method of boric acid.
The most common crystalline state is hexagonal boron oxide, which is stable under normal conditions.
The other crystalline form of boron oxide, the less common monoclinic boron oxide, is not thermodynamically stable under normal conditions.
These crystals; It is hard, white and odorless.
 

Some Uses and Benefits:
Glass: It is used as a substance reducing the melting point and increasing the coefficient of thermal expansion in glass production.
At the same time, it improves the scratch and acid resistance of the glass and increases its color and gloss properties.
Ceramics: Boron oxide is used in the production of ceramic and enamel glazes.
Its functions are to regulate the coefficient of thermal expansion between the glaze and the material it is coated with, to ensure that the refractive index of the glaze is high, to increase the mechanical properties and scratch resistance of the glaze, and to increase the resistance to water and chemicals.
Boron chemicals: It acts as a catalyst in the production of inorganic compounds such as boron hydrides, boron nitrides and organic boron compounds such as boric acid esters in the production of boron chemicals.
Metallurgy: It is used as a flux in the metallurgical industry because it is a good solvent for metal oxides.
Electricity and electronics: Ga-As (Gallium-Arsenic) is used in the construction of semiconductors.
 
Physical Properties:
Specific gravity: 2.17 g/cm3
Bulk (bulk) density: 1.10 g/cm3
Molecular weight: 69.62 g/mol
Melting point: 450o C
Boiling point: 1860o C
Heat capacity: 16.2 J/go C
Thermal conductivity: 0.345 W/mK
Since it dissolves in water, it is necessary to glass it (when adding borax or boric acid).
It creates opacity when used excessively on the glaze.
Using it together with zinc and calcium causes the formation of boron mesh.
If the amount of aluminum in the glaze is increased, the glaze becomes transparent.
A small amount of B2O3 additive gives positive results for the elimination of glaze cracks, while additives over 12% have a negative effect.
Glazes with barium oxide and calcium oxide are resistant to scratching.
B2O3 lowers the viscosity.
It provides a wide melting interval. The row gives very nice shine and depth.

Packaging: 100 gr (0,22 lb) - 1 kg (2,20 lb) - 25 kg (55,12 lb)