On the interaction of phytate with proton and monocharged inorganic cations in different ionic media, and modeling of acid-base properties at low ionic strength

Relationship between entropic contribution (expressed as TΔS) and free energy (as −ΔG) for the proton association process to phytate. Stepwise data for all the protonation steps in the ionic strength range 0 < I/mol · kg−1 ⩽ 0.15 at T = 298.15 K. Standard uncertainties u are u (T) = 0.1 K, u (I) = 0.0001 mol · kg−1.