Chemical elements
    Physical Properties
    Chemical Properties
      Radium Hydride
      Radium Chloride
      Radium Bromide
      Radium Iodide
      Radium Fluoride
      Radium Iodate
      Radium Oxide
      Radium Hydroxide
      Radium Sulphate
      Radium Carbonate
      Radium Nitride
      Radium Azide
      Radium Nitrate
      Radium Silicate
      Radium Platinocyanide

Radium Carbonate, RaCO3

Radium Carbonate, RaCO3, may be obtained by fusion of the sulphate with an alkali carbonate, or by boiling with a solution of the latter. It may also be precipitated from solutions of soluble radium salts by ammonium carbonate. It is insoluble in water, but dissolves readily in hydrochloric acid.

Radium might be concentrated in mixtures of the alkaline earths by fractional precipitation of the carbonates, radium being precipitated last.

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