Beyond Mn no metal has a trihalide expect :

Beyond Mn, no metal possesses a trihalide other than ${\mathrm{FeX}}_3$ and ${\mathrm{CoX}}_3$, and Mn's +7 state is not represented in simple halides.

The ore interacts with the carbon monoxide, removing one of its oxygen atoms and producing carbon dioxide as a result. As a result, it does not emit a fatal amount of CO into the atmosphere.

The chemical element iron has the atomic number 26 and the symbol Fe (derived from the Latin ferrum). It is a metal that is found in group 8 of the periodic table and the first transition series.