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Chemical elements
  Germanium
    Isotopes
    Energy
    Production
    Application
    Physical Properties
    Chemical Properties
      Germanium Hydride
      Germanium Tetra-ethyl
      Germanium Chloroform
      Germanous Fluoride
      Germanic Fluoride
      Hydrofluogermanic Acid
      Potassium Germanifluoride
      Fluogermanate
      Germanous Chloride
      Germanic Chloride
      Germanium Oxychloride
      Germanic Bromide
      Germanic Iodide
      Germanous Oxide
      Germanous Hydroxide
      Germanic Oxide
      Germanous Sulphide
      Germanic Sulphide
      Germanium Ultramarine

Germanous Oxide, GeO

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Germanous Oxide, GeO, is obtained by heating the hydroxide in an inert atmosphere, or by heating the dioxide with metallic germanium or with magnesium. Biltz, however, could not bring about the reaction

GeO₂ + Ge = 2GeO.

Germanous oxide is a greyish black powder which is volatile and dissolves in hydrochloric acid, forming a solution of germanous chloride.