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 ?
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.
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.
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.
The result is a white cloud, which looks like steam, that consists of boric oxide, boric acid and water vapor.
This could lead to the consumption of tens of thousands of mt/yr of boric oxide equivalent.
We realized that by cleaning the powder with an alcohol such as methanol, we could remove the boric oxide on the surface and get essentially the same kind of effect at low temperatures that the Washington team was getting with high temperatures.
Canty's published technical specifications indicate that Boro Plus glass contains up to five percent boric oxide (B2O3), in fact the independent test shows that it contains no detectable boric oxide whatsoever, making it indistinguishable from common soda lime glass.
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.
Warrick, 86, said the basic recipe for Silly Putty is to mix a silicone derivative with boric oxide.
Here there are computer generated examples of high fired, porcelain glazes with increasing amounts of boric oxide.