The Second Acidic Constant of Salicylic Acid
Copyright policy )The Second Acidic Constant of Salicylic Acid
AbstractThe second dissociation constant of salicylic acid (H2L) has been determined, at 25 °C, in NaCl ionic media by UV spectrophotometric measurements. The investigated ionic strength values were 0.16, 0.25, 0.50, 1.0, 2.0 and 3.0 M. The protolysis constants calculated at the different ionic strengths yielded, with the Specific Interaction Theory, the infinite dilution constant, log β1° = 13.62 ± 0.03 , for the equilibrium L2‐ + H+ ⇌ HL−. The interaction coefficient between Na+ and L2‐, b(Na+, L2‐) = 0.02 ± 0.07, has been also calculated.
- University of Calabria Italy
Osmolar Concentration, Potentiometry, Temperature, Titrimetry, Spectrophotometry, Ultraviolet, Hydrogen-Ion Concentration, Sodium Chloride, Salicylic Acid
Osmolar Concentration, Potentiometry, Temperature, Titrimetry, Spectrophotometry, Ultraviolet, Hydrogen-Ion Concentration, Sodium Chloride, Salicylic Acid
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