A Peer-reviewed Official International Journal Sci. Technol. Arts Res. Protolitic Equilibria and Stability

Protonation constant of nicotinaldehyde with Mn (II) and Ni (II) were studied in SDS nitrogen atmosphere and an ionic strength of 0.1 mol dm protonation constant of the ligand and stability constant of its Mn (II) and Ni (II) complexes were calculated by using MINIQUAD 75 computer program, and species distribution diagrams were produced using the HySS computer progra chemical models is based on statistical parameters. The predominant species detected for both metals for 1:1 and 1:2 ratios were ML, MLH; ML appropriateness of experimental conditions is ver the concentrations of ingredients of the solution. Distribution diagram and plausible equilibria for the formation and possible structure of the complex species are also presented