Chemical elements
  Lithium
    Isotopes
    Energy
    Production
    Application
    Physical Properties
    Chemical Properties
      Lithium hydride
      Lithium chloride
      Lithium bromide
      Lithium iodide
      Lithium iodide tetrachloride
      Lithium hypochlorite
      Lithium chlorate
      Lithium perchlorate
      Lithium bromate
      Lithium iodate
      Lithium periodates
      Lithium monoxide
      Lithium peroxide
      Lithium hydroxide
      Lithium monosulphide
      Lithium polysulphides
      Lithium sulphite
      Lithium sulphate
      Lithium persulphate
      Lithium thiosulphate
      Lithium dithionate
      Lithium selenide
      Lithium selenite
      Lithium selenate
      Lithium chromate
      Lithium permanganate
      Lithium molybdates
      Lithium nitride
      Lithium hydrazoate
      Lithamide
      Lithium nitrite
      Lithium nitrate
      Lithium phosphide
      Lithium orthophosphate
      Lithium pyrophosphate
      Lithium metaphosphate
      Lithium arsenide
      Lithium meta-arsenite
      Lithium arsenate
      Lithium antimonide
      Lithium antimonate
      Lithium carbide
      Lithium carbonate
      Lithium percarbonate
      Lithium cyanide
      Lithium thiocyanate
      Lithium silicide
      Lithium silicates
      Lithium borates

Lithium periodates






Three periodates can be obtained by the action of lithium carbonate on periodic acid in aqueous solution. According to Rammelsberg, when sufficient carbonate to neutralize the acid is employed, crystals are deposited, probably the ortho-salt, Li5IO6; but with a smaller proportion of carbonate a salt, Li4I2O9,3H2O, is formed, which at 200° C. loses water, yielding a salt, probably Li2H3IO6. Addition of periodic acid to the aqueous solution of the complex tetra-lithium salt produces the meta-periodate, LiIO4.

In more recent work by Rosenheim and Loewenthal, it was not found possible to prepare Rammelsberg's ortho-salt or his meta-salt. One molecule of periodic acid reacts with two molecules of lithium hydroxide, precipitating colourless, microscopic spherules of the salt Li3H2IO6. On standing, the mother-liquor gradually deposits colourless, small, six-sided bipyramids of the formula Li2H3IO6.


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