O'Sullivan and Smith also determined the solubility of nitrogen in water and NaCl aqueous solutions between 50 to 125⁰C and pressures up to 600 bar. Figure shows the performance of the models along with the experimental data obtained at three different temperatures. Considering "phreeqc.dat", both Reaktoro and PHREEQC lead to analogous results. In pure water, phreeqc.dat and pitzer.dat provide the same results and the discrepancy between the two databases becomes obvious only at higher ionic strength. Analogous to methane, with the pitzer database, the effect of salinity on the solubility is not properly reflected.