In neutral solutions, zinc gives a precipitate of gallium oxide.
Its salts would be precipitable by barium carbonate; the gallium salts are thrown down by this reagent.
gallium also forms an alum consisting of the double sulphate with ammonium.
III a.—Aluminium, gallium and indium were examined from this group.
gallium resembles lead in appearance, but is less blue in colour.
The bromide, iodide and sulphate are known, as is also gallium ammonium alum.
Give the derivation of the names of the following elements: thorium, gallium, selenium, uranium.
gallium is best detected by means of its spark spectrum, which gives two violet lines of wave length 4171 and 4031.
Who, for instance, will find a use for gallium, the metal of France?
The Pierrefitte blende contains one part of gallium in four hundred thousand.
metalic element, discovered by spectral lines in 1875 by French chemist Lecoq de Boisbaudran (1838-1912), who named it apparently in honor of his homeland (see Gallic), but it has been suggested that he also punned on his own name (cf. Latin gallus "cock").
gallium gal·li·um (gāl'ē-əm)
A rare metallic element that is liquid near room temperature and is found as a trace element in coal, bauxite, and other minerals. Atomic number 31; atomic weight 69.72; melting point 29.76°C; boiling point 2,204°C; specific gravity 5.904; valence 2, 3.
A rare, silvery metallic element that is found as a trace element in coal, in bauxite, and in several minerals. It is liquid near room temperature and expands when it solidifies. It is used in thermometers and semiconductors. Atomic number 31; atomic weight 69.72; melting point 29.78°C; boiling point 2,403°C; specific gravity 5.907; valence 2, 3. See Periodic Table.