What is Tellurium trioxide?
'''Tellurium trioxide''', also known as '''tellurium(VI) oxide''' is a [[chemical compound]]. Its chemical formula is TeO<sub>3</sub>. It contains [[tellurium]] and [[oxide]] [[ion]]s. It contains tellurium in its +6 [[oxidation state]]. ==Properties== Tellurium trioxide can come in two forms. There is a yellow-red form and a gray form. The yellow red form is more reactive. It is a powerful [[oxidizing agent]]. It reacts with strong [[base (chemistry)|bases]] to make [[tellurate]]s. It releases [[oxygen]] to turn into [[tellurium dioxide]] when heated. ==Preparation== It is made by taking the water from [[telluric acid]]. The gray form can be made from this by reacting the yellow-red form with [[sulfuric acid]] and air. ==Related pages== *[[Tellurous acid]] {{chem-stub}} [[Category:Tellurium compounds]] [[Category:Oxides]]