Tungsten pentoxide () was reported in early literature but proved to have the

stoichiometry Stoichiometry () is the relationships between the masses of reactants and Product (chemistry), products before, during, and following chemical reactions. Stoichiometry is based on the law of conservation of mass; the total mass of reactants must ...

W₁₈O₄₉.Wells A.F. (1984) ''Structural Inorganic Chemistry'' 5th edition Oxford Science Publications Sometimes called mineral blue, it is a blue solid formed by the reaction of tungsten trioxide, WO₃, and

tungsten Tungsten (also called wolfram) is a chemical element; it has symbol W and atomic number 74. It is a metal found naturally on Earth almost exclusively in compounds with other elements. It was identified as a distinct element in 1781 and first ...

metal at 700 °C.

Intermediate oxides of tungsten

There are a number of these unusual intermediate oxides formed from reacting metal and trioxide, including W₂₀O₅₈ and W₂₄O₇₀. W₁₈O₄₉ contains both octahedral and pentagonal bipyramidal co-ordination of the metal

atom Atoms are the basic particles of the chemical elements. An atom consists of a atomic nucleus, nucleus of protons and generally neutrons, surrounded by an electromagnetically bound swarm of electrons. The chemical elements are distinguished fr ...

s by

oxygen Oxygen is a chemical element; it has chemical symbol, symbol O and atomic number 8. It is a member of the chalcogen group (periodic table), group in the periodic table, a highly reactivity (chemistry), reactive nonmetal (chemistry), non ...

References

Tungsten(V) compounds Transition metal oxides {{inorganic-compound-stub

Intermediate oxides of tungsten

See also

References