“…Osmotic coefficients of NaH 2 PO 4 (aq) vs the stoichiometric molality: open circle, Childs et al; square position indicator, Pavićević et al; position indicator, Scatchard and Breckenridge; asterisk, Stokes; solid circle, Ivanović et al, open triangle, El Guendouzi and Benbiyi; solid triangle, Platford; solid star, Wood and Platford; cross product, Scharge et al; open star, Filippov and Charykova; red times, Filippov et al; open square, this research; red-dotted curve, calculated from the extended Pitzer model with parameters from Table , all at T = 298.15 K.…”