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

Boron imide, B2(NH)3

Boron imide, B2(NH)3, is best prepared by heating the compound B2S3.6NH3 at 115° to 120° in a rapid stream of ammonia for some days: -

B2S3.6NH3 = B2(NH)3 + 3NH4.SH.

Boron imide is a light, white powder, insoluble in alcohol, ether, carbon disulphide, and liquid ammonia. It begins to decompose at 125° to 130° with the evolution of ammonia, and at a slightly higher temperature is completely resolved into, boron nitride and ammonia. When boiled with water, boron imide is decomposed into ammonia and boric acid.

Boron imide is a feebly basic compound, and when added to liquid hydrogen chloride it forms a white hydrochloride, B2(NH)3.3HCl, insoluble in organic media, and decomposed by heat or water.

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