stability constants 5-hydroxysalicylic acid 5-sulfosalicylic acid Acid-base equilibria Aqueous solution Aquo-DMSO mixtures Binary complexes Biological reactions Chemical speciation Effect Industries KINTOB Kinetic investigations Kinetic method Kinetometrics L-glutamic Mining Protonation equilibria of oxalic and malonic acids Safety Solute-solvent interactions Solvent Stability constant aurintricarboxylic acid chemical chemical models crystallographic R factor dielectric constant dioxan distribution diagrams group IIIA elements ligand metal metal complex phen protonation protonation constant solvent speciation succinic urea