The problem with sulfides slide)which should be contrasted with the Ellingham A is illustrated in the ellingham diagram for sulfides (ne diagram for oxides In contrast to the oxide diagram the lines for the inexpensive reducing agents carbon and hydrogen(going to their sulfides) lie high in the diagram Consequently the sulfides of most metals cannot simply be reacted with carbon or hydrogen to produce the metal Expressed another way neither carbon nor hydrogen have sufficient affinity for sulfur to be used to remove sulfur from most metal compoundsThe problem with sulfides... …is illustrated in the Ellingham diagram for sulfides (next slide) which should be contrasted with the Ellingham diagram for oxides. In contrast to the oxide diagram, the lines for the inexpensive reducing agents carbon and hydrogen (going to their sulfides) lie high in the diagram. Consequently the sulfides of most metals cannot simply be reacted with carbon or hydrogen to produce the metal. Expressed another way, neither carbon nor hydrogen have sufficient affinity for sulfur to be used to remove sulfur from most metal compounds