Chemical elements
    Physical Properties
    Chemical Properties
    Cuprous Compounds
    Complex Copper Compounds
    Cupric Compounds
      Cupric hydride
      Cupric fluoride
      Cupric chloride
      Copper hydroxide
      Cupric bromide
      Cupric iodide
      Cupric chlorate
      Cupric bromate
      Cupric iodate
      Cupric periodates
      Cupric oxide
      Copper peroxide
      Cupric hydroxide
      Cupric sulphide
      Cupric polysulphides
      Cupric sulphite
      Cupric sulphate
      Copper Sulphate
      Cupric selenide
      Cupric selenite
      Double Copper Selenates
      Cupric telluride
      Cupric dithionate
      Cupric tetrathionate
      Cupric hydrazoate
      Cupric nitrite
      Cupric nitrate
      Cupric phosphide
      Cupric hypophosphite
      Cupric phosphite
      Cupric orthophosphate
      Cupric pyrophosphate
      Cupric metaphosphate
      Cupric arsenate
      Cupric metantimonite
      Cupric pyroantimonate
      Cupric metantimonate
      Cupric acetylide
      Cupric carbide
      Cupric carbonates
      Cupric cyanide
      Cupric thiocyanate
      Cupric silicates
      Cupric metaborate
      Cupric acetate
    PDB 1a2v-1bxu
    PDB 1bxv-1fwx
    PDB 1g3d-1j9t
    PDB 1jcv-1mfm
    PDB 1mg2-1paz
    PDB 1pcs-1sii
    PDB 1sjm-1w6w
    PDB 1w77-2afn
    PDB 2ahk-2dv6
    PDB 2dws-2ggp
    PDB 2ghz-2mta
    PDB 2nrd-2vm3
    PDB 2vm4-2yah
    PDB 2yam-3bkt
    PDB 3bqv-3fyi
    PDB 3g5w-3mie
    PDB 3mif-3t6v
    PDB 3t6w-9pcy

Cupric nitrate, Cu(NO3)2

Crystallization of a solution of cupric oxide or carbonate in dilute nitric acid yields the nitrate in the form of deliquescent hydrates. Below –20.5° C. the nonahydrate crystallizes; below 24.5° C. the hexahydrate in blue, tabular crystals; and above this temperature the trihydrate in prismatic, columnar crystals, m.p. 114.5° C., density 2.047. The anhydrous salt is prepared by treating the dried powder with nitric acid containing excess of nitric anhydride, and drying the residue over calcium oxide and phosphoric oxide. It is a white, deliquescent substance, which begins to decompose at 155° to 160° C. At red heat it is converted into cupric oxide. At 8° C. its heat of solution is 10.47 Cal. The heat of formation of the anhydrous salt from its elements is 71.49 Cal.; that in solution is 81.96 Cal. Thomsen's value for the heat of formation of the hexahydrate from the anhydrous salt and liquid water is 21-18 Cal., and from its elements and water 92.94 Cal. It yields a green, basic salt, Cu(NO3)2,3Cu(OH)2. A complex ammonia derivative, Cu(NO3)2,7NH3, is formed in pale-blue crystals by the action of reduced copper on silver nitrate in presence of liquid ammonia. In vacuum over sulphuric acid it changes to pale-violet crystals, Cu(NO3)2,4NH3.

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