Chemical elements
    Physical properties
    Chemical properties
      Boron Hydrides
      Boron trihydride
      Boron halogen
      Boron trifluoride
      Hydrofluoboric acid
      Potassium borofluoride
      Fluoboric acid
      Perfluoboric acid
      Boron subchloride
      Boron trichloride
      Boron tribromide
      Boron tri-iodide
      Oxides of Boron
      Tetraboron trioxide
      Boron dioxide
      Tetraboron pentoxide
      Boron sesqui-oxide
      Boron trioxide
      Boric anhydride
      Boric Acids
      Orthoboric acid
      Boric acid
      Boracic acid
      Complex Boric Acids
      Perboric Acid and Perborates
      Sodium perborate
      Sodium hyperborate
      Potassium perborate
      Rubidium perborate
      Ammonium perborate
      Barium perborate
      Boron sesquisulphide
      Boron trisulphide
      Boron pentasulphide
      Boron selenide
      Boron nitride
      Boron amide
      Boron imide
      Boron phosphide
      Boron phospho-iodides
      Boron carbide
      Boron thiocyanate
      Boron Alkyls
      Boron trimethyl
      Boron Silicides and

Decaborotetradecahydride, B10H14

When the hydride B4H10 is heated for four or five hours to 100°, or when the hydride B2H6 is heated for forty- eight hours to 115° to 120°, a volatile solid hydride, B10H14, is produced.

This hydride is a colourless solid of peculiar odour resembling that of osmium tetroxide. It sublimes in vacuo at 60° to 80°, producing beautiful long needles of density 0.94. It melts at 99.5° to a colourless liquid that does not decompose below 200°. The molecular weight in benzene solution and the percentage composition are in harmony with the molecular formula B10H14.

The hydride is soluble in alcohol, ether, benzene, and carbon disulphide. It is not decomposed by air or water, is little affected by nitric acid, but is oxidised by potassium permanganate. It dissolves in alkalies, forming a yellow solution.

When prepared from B4H10 or B2H6 by heating, the hydride B10H14 is accompanied by two other non-volatile solid boron hydrides, which are also produced when B10H14 is heated: (i.) a yellow hydride, probably (B5H4)x, insoluble in carbon disulphide and decomposed by water; and (ii.) a colourless hydride, probably B12Hx, soluble in carbon disulphide, not decomposed by water, and converted into (i.) at 150°.

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