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Standard Gibbs energies of formation of M2TeO6 (s) (M = Eu, Dy, Yb)

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Abstract

The standard Gibbs energies of formation of M2TeO6 (where M: Eu, Dy, Yb) were obtained from vapour pressure measurements. The vapour pressures of TeO2 (g) were measured by employing thermogravimetry-based transpiration technique. The temperature dependence of the vapour pressure of TeO2 (g) over the mixtures M2TeO6 (s) + M2O3 (s), generated by the incongruent vapourisation reaction, M2TeO6 (s) → M2O3 (s) + TeO2 (g) + ½ O2 (g) was measured in the temperature range 1,368–1,483 K (M: Eu), 1,313–1,473 K (M: Dy), and 1,283–1,413 K (M: Yb) to obtain the Gibbs energies of formation of Eu2TeO6 (s), Dy2TeO6 (s), and Yb2TeO6 (s), respectively.

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  1. Chemistry Group, Indira Gandhi Centre for Atomic Research, Kalpakkam, 603102, India

    Ashish Jain, R. Pankajavalli & S. Anthonysamy

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  1. Ashish Jain
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  2. R. Pankajavalli
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  3. S. Anthonysamy
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Correspondence to S. Anthonysamy.

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Jain, A., Pankajavalli, R. & Anthonysamy, S. Standard Gibbs energies of formation of M2TeO6 (s) (M = Eu, Dy, Yb). J Therm Anal Calorim 119, 689–693 (2015). https://doi.org/10.1007/s10973-014-4079-6

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  • DOI: https://doi.org/10.1007/s10973-014-4079-6

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