boric oxide

boric oxide

[¦bȯr·ik ′äk‚sīd]
(inorganic chemistry)
B2O3 A trioxide of boron obtained as rhombic crystals melting at 460°C; used as an intermediate in the production of boron halides and metallic borides and as a thermal neutron absorber in nuclear engineering. Also known as boron oxide.
References in periodicals archive ?
In this work, the thickness of oxide layers could be associated with the thermodynamics and kinetics of corrosion and incorporation of boric oxide. In the viewpoint of corrosion thermodynamics, [Cr.sub.2][O.sub.3] and [Fe.sub.3][O.sub.4] are stable phases under all DH contents handled in this work.
Turkey is home to 866kt (thousand tonnes) of boric oxide reserves that, according to estimates from state-owned Eti Maden, constitutes 72% of global reserves.
They also contained about 18 percent boric oxide, which demonstrates that boron is usable in copper reds.
The correct conversion factor is BAE = 1.2 x %DOT, because boric acid is 56% boric oxide and DOT is 67% boric oxide.
In the fourth stage of melting, boric oxide (B2O3) was gradually increased to 0.5% in each composition while CaO was gradually reduced to 0.5% in each composition in the same way.
Borosilicate glass is made with the following approximate proportions of ingredients: 70% silica, 10% boric oxide, 8% sodium oxide, 8% potassium oxide, and 1% calcium oxide.
Unfortunately, the acid leach oxidizes the surface of the boron carbide powder, forming boric oxide, which prevents good metal infiltration.
Silica is the main acidic constituent of the more usual glaze frits and, with boric oxide acting in a subsidiary role, is the main glass network-forming oxide.
Chemical Component Amount BA Boric oxide ([B.sub.2][O.sub.3]) 56.3% Water ([H.sub.2]O) (a) 67.1% Equiv.
Boric oxide, for example: if a ceramic piece is glazed with a white-opaque glaze containing an excessive amount of boric oxide, the result will be a white-opaque layer in the glaze creating high reflections.