title: The acid dissociation of haemin.
mesh_terms: D055598:Chemical Phenomena; D002621:Chemistry; D006418:Heme; D006863:Hydrogen-Ion Concentration; D007700:Kinetics; D046911:Macromolecular Substances; D008433:Mathematics; D013053:Spectrophotometry; D013696:Temperature; D013816:Thermodynamics
chemical_list: D046911:Macromolecular Substances; D006418:Heme