Antimony(III) Oxideke motsoako oa inorganic o nang le foromoSb2O3. Antimony Trioxideke k'hemik'hale ea indasteri hape e hlaha ka tlhaho tikolohong. Ke motsoako oa bohlokoa ka ho fetisisa oa khoebo oa antimony. E fumaneha tlhahong e le liminerale valentine le senarmontite.Antimony Trioxideke k'hemik'hale e sebelisoang ha ho etsoa polasetiki ea polyethylene terephthalate (PET), e sebelisetsoang ho etsa lijana tsa lijo le lino.Antimony Trioxidee boetse e eketsoa ho tse ling tse thibelang malakabe ho etsa hore li sebetse hantle lihlahisoa tsa bareki, ho kenyelletsa le thepa ea ka tlung, masela, k'hapete, lipolasetiki le lihlahisoa tsa bana.