Skip to main content
SpringerLink
Log in

Low-temperature heat capacities and thermodynamic properties of rare-earth triisothiocyanate hydrates (III) —Sm(NCS)3 · 6H2O, Gd(NCS)3 · 6H20, Yb(NCS)3 · 6H20 and Y(NCS)3 · 6H20

  • Published:
Science in China Series B: Chemistry Aims and scope Submit manuscript

Abstract

The heat capacities of four RE isothiocyanate hydrates, Sm(NCS)3, · 6H20, Gd(NCS)3 · 6H20, Yb(NCS)3, · 6H2O and Y(NCS)3, · 6H20, have been measured from 13 to 300 K with a fully-automated adiabatic calorimeter. No obvious thermal anomaly was observed for the above-mentioned compounds in the experimental temperature ranges. The polynomial equations for calculating the heat capacities of the four compounds in the range of 13–300 K were obtained by the least-squares fitting based on the experimentalC P, data. TheC P, values below 13 K were estimated by using the Debye-Einstein heat capacity functions. The standard molar thermodynamic functions were calculated from 0 to 300 K. Gibbs energies of formation were also calculated.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. Tan Zhicheng, Matsuo, T., Suga, H.et al., Low-temperature heat capacities and thermodynamic properties of lanthanum and cerium triisothiocyanate hydrates (I) —La(NCS)3 · 7H20 and Ge(NCS)3 · 7H20.,Science in China, Ser. B, 1992, 35(4): 391.

    Google Scholar 

  2. Tan Zhicheng, Matsuo, T., Suga, H.et al., Low-temperature heat capacities and thermodynamic properties of rare-earth triisothiocyanate hydrates (II) —Pr(NCS)3 · 7H20 and Nd(NCS)3 · 7H20,Science in China, Ser. B, 1996, 39(3): 276.

    Google Scholar 

  3. Kishimoto, K., Suga, H., Seki, S., An on-line automated adiabatic calorimeter in the 13–300 K,Bull Chem Soc. Jpn., 1980, 53: 2748.

    Article  CAS  Google Scholar 

  4. Matsuo, T., Suga, H., Adiabadic microcalorimeter for heat capacity measurements at low temperature,Thermochim. Acta, 1985, 88: 149.

    Article  CAS  Google Scholar 

  5. Sorai, M., Kaji, K., Kaneko, Y., An automated adiabatic calorimeter for the temperature range from 13 to 530 K,J. Chem. Thermodyn, 1992, 24: 167.

    Article  CAS  Google Scholar 

  6. Gruneisen, E.,Handbuck der Physik, 10, Berlin: Julius Springer, 1926, 350–370.

    Google Scholar 

  7. Gopal, E. S. R.,Specific Heats at Low Temperatures, New York: Plenum Press, 1966, 205–226.

    Google Scholar 

  8. {au{fnWagman}, {gnD. D.}}, {atThe NBS tables of chemical thermodynamic properties: Selected values for inorganic and C1 and C2 organic substances in SI units}, {jtJ. Phys. Chem. Reference Data}, {dy1982}, {vn11}({sn2}), supplement.

  9. Yin, J. Z., Jiang, B. G., Sun, T. S.et al., Determination of standard molar enthalpies of formation for rare-earth isothiocyanate Hydrates,Thermwhim. Acta, 1988, 123: 43.

    Article  CAS  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Dalian Institute of Chemical Physics, Chinese Academy of Sciences, 116023, Dalian, China

    Zhicheng Tan

  2. Microcalorimetry Research Center and Department of Chemistry, Faculty of Science, Osaka University, Toyonaka, 560, Osaka, Japan

    Takasuke Matsuo & Hiroshi Suga

  3. Thermochemistry Laboratory, Northwestern University, 710069, Xi’an, China

    Zhiying Zhang

  4. Department of Chemistry, Shandong University, 250100, Jinan, China

    Jingzhi Yin, Bengao Jiang & Tongshan Sun

Authors
  1. Zhicheng Tan
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Takasuke Matsuo
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. Hiroshi Suga
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Zhiying Zhang
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. Jingzhi Yin
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. Bengao Jiang
    View author publications

    You can also search for this author in PubMed Google Scholar

  7. Tongshan Sun
    View author publications

    You can also search for this author in PubMed Google Scholar

Additional information

Project supported by the National Natural Science Foundation of China.

Rights and permissions

Reprints and permissions

About this article

Cite this article

Tan, Z., Matsuo, T., Suga, H. et al. Low-temperature heat capacities and thermodynamic properties of rare-earth triisothiocyanate hydrates (III) —Sm(NCS)3 · 6H2O, Gd(NCS)3 · 6H20, Yb(NCS)3 · 6H20 and Y(NCS)3 · 6H20. Sc. China Ser. B-Chem. 40, 165–176 (1997). https://doi.org/10.1007/BF02876408

Download citation

  • Received:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF02876408

Keywords

Search

Navigation