Atomistry » Tungsten » Compounds » Tungsten Boride
Atomistry »
  Tungsten »
    Compounds »
      Tungsten Boride »

Tungsten Boride, WB2

Tungsten Boride, WB2, is produced when a mixture containing 4 grams of tungsten and 0.2 gram of boron is heated in an electric furnace, or when an electric arc is passed between electrodes, made by pressing together finely powdered boron and tungsten, in a vacuum electric furnace. The product is silvery and metallic on fracture, and consists of microscopic octahedral crystals. The boride is brittle, of hardness 8 and of density, according to Tucker and Moody, 9.6; Wedekind found the density at 20° C. to be 10.77. It is slowly attacked by concentrated acids, more readily by aqua regia. Chlorine decomposes it at 100° C. It readily dissolves in a fused mixture of sodium carbonate and potassium nitrate.

Last articles

Zn in 7NA9
Zn in 7LZP
Zn in 7M1H
Zn in 7L6V
Zn in 7CM0
V in 7P8R
Ni in 7L19
Na in 7T88
Na in 7MJ5
Na in 7L00
© Copyright 2008-2020 by atomistry.com
Home   |    Site Map   |    Copyright   |    Contact us   |    Privacy