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Thermodynamic properties of NaZr2(AsO4)3

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Abstract

The heat capacity C 0 p of crystalline NaZr2(AsO4)3 has been measured in the range 7–650 K using precision adiabatic calorimetry and differential scanning calorimetry. The experimental data have been used to calculate the standard thermodynamic functions of the arsenate: C 0 p , enthalpy H 0(T) − H 0(0), entropy S 0(T), and Gibbs function G 0(T) − H 0(0) from T → 0 to 650 K. The standard entropy of its formation from elements is Δf S 0(NaZr2(AsO4)3, cr, 298.15 K) = −1087 ± 1 J/(mol K).

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Authors and Affiliations

  1. Lobachevski State University, pr. Gagarina 23, Nizhni Novgorod, 603950, Russia

    V. I. Pet’kov, D. V. Firsov, A. V. Markin, M. V. Sukhanov & N. N. Smirnova

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  1. V. I. Pet’kov
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  2. D. V. Firsov
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  3. A. V. Markin
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  4. M. V. Sukhanov
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  5. N. N. Smirnova
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Correspondence to V. I. Pet’kov.

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Original Russian Text © V.I. Pet’kov, D.V. Firsov, A.V. Markin, M.V. Sukhanov, N.N. Smirnova, 2011, published in Neorganicheskie Materialy, 2011, Vol. 47, No. 2, pp. 221–225.

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Pet’kov, V.I., Firsov, D.V., Markin, A.V. et al. Thermodynamic properties of NaZr2(AsO4)3 . Inorg Mater 47, 178–182 (2011). https://doi.org/10.1134/S0020168511020130

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