Abstract
The system NaH2PO4−NaClO4 has been studied from 0.15 to 7.0 mole-kg−1 at 25°C by the isopiestic method. The excess free energy of mixing is large and positive. The results confirm the formation of (H2PO4) −22 dimers with a stoichiometric association constantK a=0.25±0.1 kg-mole−1 at 25°C.
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Wood, R.H., Platford, R.F. Free energies of aqueous mixtures of NaH2PO4 and NAClO4: Evidence for the species (H2PO4) −22 . J Solution Chem 4, 977–982 (1975). https://doi.org/10.1007/BF01074739
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DOI: https://doi.org/10.1007/BF01074739