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Thermal properties of Na2TeO4(s) and TiTe3O8(s)

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Abstract

Molar heat capacity measurement on Na2TeO4(s) and TiTe3O8(s) were carried out using differential scanning calorimeter. The molar heat capacity values were least squares analyzed and the dependence of molar heat capacity with temperature for Na2TeO4(s) and TiTe3O8(s) can be given as,

$$ \begin{gathered} {\text{C}}^{\text{o}}_{{{\text{p}},{\text{m}}}} \left\{ {{\text{Na}}_{ 2} {\text{TeO}}_{ 4} \left( {\text{s}} \right)} \right\} \,={159}.17 { } + 1.2\,\times\,10^{-4}T-{55}.34\,\times\,10^{5}/T^{2};\hfill \\ C^{\text{o}}_{{{\text{p}},{\text{m}}}} \left\{ {{\text{TiTe}}_{ 3} {\text{O}}_{ 8} \left( {\text{s}} \right)} \right\}\,=\,{ 275}.22{ }+{4}.0\,\times\, 10^{-5}T-{58}.28\,\times\,10^{5}/T^{2};\hfill \\ \end{gathered} $$

From this data, other thermodynamic functions were evaluated.

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Acknowledgements

The authors are thankful to Dr. L. Varshney, Head, AMS and S. Francis, AMS, Isomed, B.A.R.C. for helping with DSC study.

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  1. Product Development Division, R C and I Group, Bhabha Atomic Research Centre, Mumbai, 400 085, India

    Hemlata V. Khadilkar, S. M. Bhojane, Jayanthi Kulkarni & S. G. Kulkarni

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  1. Hemlata V. Khadilkar
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  2. S. M. Bhojane
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  4. S. G. Kulkarni
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Correspondence to Jayanthi Kulkarni.

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Khadilkar, H.V., Bhojane, S.M., Kulkarni, J. et al. Thermal properties of Na2TeO4(s) and TiTe3O8(s). J Therm Anal Calorim 111, 939–942 (2013). https://doi.org/10.1007/s10973-012-2332-4

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  • DOI: https://doi.org/10.1007/s10973-012-2332-4

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