Thallium oxide Thallium has several oxides: Thallium(I) oxide Tl2O Thallium(III) oxide Tl2O3 Thallium(I) superoxide or thallium dioxide TlO2 Tl4O3 Index of chemical compounds with the same nameThis set index article lists chemical compounds articles associated with the same name.If an internal link led you here, you may wish to change the link to point directly to the intended article.