Arsenic tetroxide is an inorganic compound with the chemical formula As2O4, containing As(III) and As(V), AsIIIAsVO4.

Synthesis

It can be synthesized in an autoclave via the following reaction:

2 As2O3 + O2 → 2 As2O4

Structure

It adopts a layer structure, and the coordination geometry of As(III) is triangular pyramid while As(V) is tetrahedral.