- CuO,Fe2O3,SO2,CO2CuO , Fe _{2} O _{3}, SO _{2}, CO _{2}
- CaO,CuO,CO,N2O5CaO , CuO , CO , N _{2} O _{5}
- CO2,SO2,P2O5,SO3CO _{2}, SO _{2}, P _{2} O _{5}, SO _{3}
- SO2,MgO,CuO,Ag2OSO _{2}, MgO , CuO , Ag _{2} O.