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Enthalpies of dilution of aqueous mixed solutions of LiCl and Li2B4O7 at 298.15 K

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Abstract

The enthalpies of dilution, Δdil H m, have been measured for LiCl+Li2B4O7+H2O system at T=298.15 K by using a RD496-III microcalorimeter. A suitable measurement method was used to obtain the better data of the enthalpies of dilution for the ternary mixing solutions to low concentrations. The relative apparent molar enthalpies, L ϕ, have been determined and the relationships between L ϕ and ionic strength I at different molal fractions of Li2B4O7 were obtained. The effect of the borate Li2B4O7 on the heat properties for the studied system was discussed.

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Authors and Affiliations

  1. Qinghai Institute of Salt Lakes, Chinese Academy of Sciences, 18 Xinning Road, Xining, 810008, P. R. China

    G. Y. Yin & Y. Yao

  2. The Graduate School of Chinese Academy of Sciences, Beijing, 100039, P. R. China

    G. Y. Yin & Y. Yao

  3. School of Chemistry and Materials Science, Shaanxi Normal University, Xi’an, 710062, P. R. China

    Zh. H. Liu

Authors
  1. G. Y. Yin
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  2. Y. Yao
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  3. Zh. H. Liu
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Correspondence to Y. Yao.

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Yin, G.Y., Yao, Y. & Liu, Z.H. Enthalpies of dilution of aqueous mixed solutions of LiCl and Li2B4O7 at 298.15 K. J Therm Anal Calorim 95, 377–380 (2009). https://doi.org/10.1007/s10973-008-9239-0

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  • DOI: https://doi.org/10.1007/s10973-008-9239-0

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