TetraoxoniobateV

TetraoxoniobateV, also known as metavanadate(V) or orthovanadate(V), is a chemical compound with the formula H5VO6. It is a strong oxidizing agent and a common reagent in chemical analysis. The compound exists in the form of colorless crystals and is highly soluble in water.

The structure of tetraoxoniobateV consists of a central vanadium atom surrounded by six oxygen atoms in an octahedral arrangement. The vanadium atom has an oxidation state of +5, which is typical for vanadium in its highest oxidation state. The compound is often referred to as metavanadate(V) to distinguish it from other vanadium oxides and oxoanions.

TetraoxoniobateV is used in various analytical applications, such as the oxidation of iodide to iodine, the oxidation of sulfur dioxide to sulfate, and the oxidation of organic compounds. It is also used in the preparation of other vanadium compounds and in the treatment of wastewater.

The compound is stable in aqueous solution but can be oxidized further to form metavanadate(VI) (HVO4) in the presence of strong oxidizing agents. It is also sensitive to light and can decompose upon exposure to ultraviolet radiation.

TetraoxoniobateV is a hazardous substance and should be handled with care. It can cause skin and eye irritation, and inhalation of dust can lead to respiratory problems. Proper personal protective equipment should be used when handling this compound.