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Dissociation constants of phosphoric acid in dimethylformamide-water mixtures at 298.15 K

  • Physical Chemistry of Solutions
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Abstract

The dissociation constants of phosphoric acid (pK 1 and pK 2) in water-dimethylformamide (DMFA) mixtures (0–0.65 mole fractions of DMFA) were determined at 298.15 K by potentiometric titration. The extrapolation of these data to pure DMFA and the comparative calculation method were used to estimate the dissociation constants of the acid in DMFA.

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Authors and Affiliations

  1. Institute of the Solution Chemistry, Russian Academy of Sciences, Ivanovo, Russia

    L. P. Safonova, Yu. A. Fadeeva & A. A. Pryakhin

  2. Ivanovo State University of Chemical Technology, Ivanovo, Russia

    L. P. Safonova

Authors
  1. L. P. Safonova
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  2. Yu. A. Fadeeva
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  3. A. A. Pryakhin
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Correspondence to L. P. Safonova.

Additional information

Original Russian Text © L.P. Safonova, Yu.A. Fadeeva, A.A. Pryakhin, 2009, published in Zhurnal Fizicheskoi Khimii, 2009, Vol. 83, No. 10, pp. 1932–1935.

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Safonova, L.P., Fadeeva, Y.A. & Pryakhin, A.A. Dissociation constants of phosphoric acid in dimethylformamide-water mixtures at 298.15 K. Russ. J. Phys. Chem. 83, 1747–1750 (2009). https://doi.org/10.1134/S0036024409100215

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  • DOI: https://doi.org/10.1134/S0036024409100215

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