2nd degree polynomial fit from Sanahuja1986 http://dx.doi.org/10.1016/0021-9614(86)90063-7
function HeatOfSolution_NaCl_Sanahuja1986 input SI.Temperature T; output Types.PartialMolarEnthalpy h_sol = (-0.0022 * T ^ 2) + 1.22886 * T - 166.889 "[J/mol_NaCl]"; end HeatOfSolution_NaCl_Sanahuja1986;