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Joint Expert Speciation System (JESS) is a package of computer software and data developed collaboratively at Murdoch University and elsewhere by researchers interested in the chemical thermodynamics of water solutions with important applications in industry, biochemistry, medicine and the environment. Using information from the chemical literature, stored in databases for numerous chemical properties, JESS achieves coherence between frequently conflicting sources by automatic methods.JESS places a strong emphasis on the concept of chemical speciation (i.e. the identity and relative abundance of different chemical entities which may be present), which can be predicted from known stability constants of metal-ligand complexes. Characteristic quantities for wate… more »