The molar heat capacities of the binary mixture composed of water and n-butanol were measured with an adiabatic calorimeter in the temperature range 78–320 K. The functions of the heat capacity with respect to thermodynamic temperature were established. A glass transition, solid–solid phase transition and solid–liquid phase transition were observed. The corresponding enthalpy and entropy of the solid–liquid phase transition were calculated, respectively. The thermodynamic functions relative to a temperature of 298.15 K were derived based on the relationships of the thermodynamic functions and the function of the measured heat capacity with respect to temperature.
1 Nan, Z Tan, ZC Sun, LX 2004 Acta Phys. Chim. Sin. 20 626.
2 Nan, Z Tan, ZC 2005 J. Chem. Eng. Data 50 6 .
3 Páramo, R Zouine, M Casanova, C 2002 J. Chem. Eng. Data 47 441 .
4 Nan, Z Tan, ZC 2004 J. Therm. Anal. Cal. 76 955 .
5 Wang, SX Tan, ZC Di, YY Xue, F Wang, MH Sun, LX Zhang, T 2004 J. Therm. Anal. Cal. 76 335 .
6 Song, YJ Tan, ZC Lu, SW Xue, Y 2004 J. Therm. Anal. Cal. 77 873 .
7 Xue, P Wang, JY Tan, ZC Lu, SW Meng, SH 2004 J. Therm. Anal. Cal. 76 965 .
8 Liu, BP Tan, ZC Nan, ZD Liu, P Sun, LX Xue, F Lan, XZ 2003 J. Therm. Anal. Cal. 71 623 .
9 Xu, F Sun, LX Tan, ZC Yu, P Zhang, T 2003 J. Therm. Anal. Cal. 74 335 .
10 Sørensen, JM Arlt, W et al. 1979 Chemistry Data Series Dechema Frankfurt, Germany Vol. V, part 1.
11 Tamura, K Hu, J Trandum, C Westh, P Haynes, CA Koga, Y 2000 Phys. Chem. Chem. Phys. 2 355 .
12 Ogawa, H Murakami, S 1986 Thermochim. Acta 109 145 .
13 Archer, DG 1993 J. Phys. Chem. Ref. Data 22 1441 .
14 Parks, GS 1925 J. Am. Chem. Soc. 47 338 .
15 Zorebski, E Chroazewski, M Traczyk, M 2005 J. Chem. Thermodyn. 37 281 .
16 Liu, ZH Hatakeyama, T et al. 2000 Handbook of Analytical Chemistry 2nd Chemical Industry Press Beijing 64.
17 Masson, JF Polomark, GM 2002 Energy Fuels 16 470 .