Cesium tungsten oxide for producing new energy saving glass is known as a type of tungsten based mixed valence state material, with the formula of CsxWO3. According to the experts, besides the mixed valence state tungsten based compounds contain tungsten in more than one oxidation state, there are various valence states of tungsten oxides.
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For example, tungsten has been known for several oxidation states, such as tungsten(III) oxide (W2O3), tungsten(IV) dioxide (WO2), tungsten(VI) trioxide (WO3), and tungsten(V) pentoxide (W2O5), etc. Also, there are a series of these unusual intermediate sub-oxides such as W20O58, W24O70, and W18O49, which are traditionally formed from reacting metal and trioxide. These non-stoichiometric tungsten based suboxides show unique structure, novel physical-chemical properties and result in many potential applications in advanced electronic devices, environmental purification, energy saving, comfortable living space and even disease treatment.
