Chemical elements
  Beryllium
    Isotopes
    Energy
    Production
    Application
    Physical Properties
    Chemical Properties
      Beryllium Hydride
      Beryllium Fluoride
      Beryllium Chloride
      Beryllium Bromide
      Beryllium Iodide
      Beryllium Double Halides
      Beryllium Oxyhalides
      Beryllium Oxide
      Beryllium Hydroxide
      Beryllium Beryllate
      Beryllium Peroxide
      Beryllium Sulphide
      Beryllium Sulphide
      Beryllium Double Sulphates
      Beryllium Sulphite
      Beryllium Thiosulphate
      Beryllium Selenate
      Beryllium Chromate
      Beryllium Hydride
      Beryllium Chromite
      Beryllium Molybdate
      Beryllium Nitride
      Beryllium Azide
      Beryllium Nitrate
      Beryllium Phosphates, Phosphite, and Hypophosphite
      Beryllium Hypophosphate
      Beryllium Arsenates
      Beryllium Arsenite
      Beryllium Antimonate
      Beryllium Hydride
      Beryllium Vanadates
      Beryllium Niobate
      Beryllium Carbide
      Beryllium Borocarbide
      Beryllium Carbonate
      Beryllium Acetate
      Beryllium Oxalates
      Beryllium Cyanide
      Beryllium Platinocyanide
      Beryllium Silicates
      Beryllium Silicotungstate
      Beryllium Borate
      Beryllium Aluminate

Beryllium Nitride, Be3N2






Beryllium Nitride, Be3N2, is similar chemically to aluminium nitride. The amorphous powder obtained by heating the metal in nitrogen above 900° C., fuses at 2200° C. under atmospheric pressure, and solidifies to colourless crystals which scratch glass. It dissociates at 2400° C., is stable in air, slowly decomposed by boiling water, and decomposed more readily than aluminium nitride by dilute acids and hot concentrated alkali hydroxides. Ammonia and beryllium hydroxide result from these reactions.

Heating in ammonia secures a more complete conversion to nitride than heating in nitrogen. A mixture of beryllia and carbon also yields the nitride at 1900° C. in nitrogen: beryllium carbide reacts with nitrogen at 1250° C., or with ammonia at 950°-1000° C. -

3Be2C+2N2 = 2Be3N2+3C.

The direct action of cyanogen on metallic beryllium at 800° C. also produces the nitride.


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