Chemical elements
    Physical Properties
    Chemical Properties
      Alkali Phosphides
      Alkaline Earth Phosphides
      Copper Silver and Gold Phosphides
      Zinc Group Phosphides
      Aluminium Phosphide
      Titanium Group Phosphides
      Tin Phosphides
      Lead Phosphides
      Arsenic Phosphides
      Antimony Phosphides
      Bismuth Phosphides
      Chromium Phosphides
      Molybdenum and Tungsten Phosphides
      Manganese Phosphides
      Iron Phosphides
      Cobalt Phosphides
      Phosphonium Chloride
      Phosphonium Bromide
      Phosphonium Iodide
      Hydrogen Phosphides
      Phosphorus Trifluoride
      Phosphorus Pentafluoride
      Phosphorus Trifluorodichloride
      Phosphorus Trifluorodibromide
      Fluophosphoric Acid
      Phosphorus Dichloride
      Phosphorus Trichloride
      Phosphorus Pentachloride
      Phosphorus Chlorobromides
      Phosphorus Chloroiodides
      Phosphorus Tribromide
      Phosphorus Pentabromide
      Phosphorus Diiodide
      Phosphorus Triiodide
      Phosphorus Oxytrifluoride
      Phosphorus Oxychloride
      Pyrophosphoryl Chloride
      Metaphosphoryl Chloride
      Phosphoryl Monochloride
      Phosphoryl Dichlorobromide
      Phosphoryl Chlorodibromide
      Phosphoryl Tribromide
      Metaphosphoryl Bromide
      Phosphoryl Oxyiodides
      Phosphorus Thiotrifluoride
      Phosphorus Thiotrichloride
      Phosphorus Thiotribromide
      Mixed Phosphorus Thiotrihalides
      Phosphorus Suboxides
      Phosphorus Trioxide
      Phosphorus Dioxide
      Phosphorus Pentoxide
      Hypophosphorous Acid
      Phosphorous Acid
      Meta- and Pyro-phosphorous Acids
      Hypophosphoric Acid
      Tetraphosphorus Trisulphide
      Diphosphorus Trisulphide
      Tetraphosphorus Heptasulphide
      Phosphorus Pentasulphide
      Phosphorus Oxysulphides
      Phosphorus Thiophosphites
      Phosphorus Thiophosphates
      Phosphorus Selenophosphates
      Phosphorus Sulphoselenides
      Diamidophosphorous Acid
      Phosphorus Triamide
      Monamidophosphoric Acid
      Diamidophosphoric Acid
      Triamidophosphoric Acid
      Dimetaphosphimic Acid ≡P=
      Trimetaphosphimic Acid
      Tetrametaphosphimic Acid
      Penta- and Hexametaphosphimic Acid
      Monamidodiphosphoric Acid
      Diamidodiphosphoric Acid
      Triamidodiphosphoric Acid
      Nitrilotrimetaphosphoric acid
      Monothioamidophosphoric Acids
      Thiophosphoryl Nitride
      Di- Tri-imido- and -amido-thiophosphates
      Imidotrithiophosphoric Acid =
      Phosphorus Chloronitrides
      Triphosphonitrilic Chloride
      Tetraphosphonitrilic Chloride
      Pentaphosphonitrilic Chloride
      Hexaphosphonitrilic Chloride
      Heptaphosphonitrilic Chloride
      Triphosphonitrilic Bromide
      Phosphorus Halonitrides
      Phosphorus Nitride
      Pyrophosphoric Acid
      Phosphoric acids
    Slow Oxidation
    Phosphatic Fertilisers

Zinc Group Phosphides

Zinc phosphides have been made chiefly by reactions (1) and (2). Molten zinc unites readily with phosphorus. A compound Zn3P2 was prepared by the action of phosphorus vapour on zinc dust; the zinc oxide present was reduced and also gave phosphide. The phosphide was a grey, well-crystallised substance which did not mix with molten zinc. It was sublimable in hydrogen over 1000° C. and when heated in the air oxidised to zinc phosphate. It was not attacked by water, but acids gave phosphine and zinc salts. The hydrophosphide, obtained by the action of phosphine on zinc ethide in ether cooled with ice and salt, is much less stable. It is a white powder which is at once decomposed by cold water giving phosphine and zinc hydroxide.

Cadmium phosphides have been obtained by direct union, as well as by the action of phosphine on ammoniacal cadmium sulphate.

Mercury forms several phosphides, i.e. Hg3P, Hg3P2, Hg3P4, which have been described as resulting from the action of phosphine in aqueous solution on mercurous or mercuric salts. These products were easily oxidised by air, halogens and aqua regia.

Boron is hardly affected by phosphorus even at high temperatures, but there are indications of a reaction when BPO4 is heated with sodium. A phosphoiodide BPI2 or BPI is made by heating BI3 with phosphorus, or by bringing the same substances together in CS2 solution. When the phosphoiodide was heated to 500° C. in hydrogen, BP was left as a maroon-coloured powder, which was not affected by water or mineral acids up to 400° C., but was hydrolysed by boiling alkalies or by superheated steam, giving borates or boric acid respectively and phosphine.11 It was violently oxidised by nitric acid and burned in oxygen. When heated at 200° C. in a current of ammonia the phosphorus was displaced by nitrogen and the very stable boron nitride, BN, was formed.

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