Heat Capacities and Standard Molar Enthalpy of Formation of Butyl 4-Hydroxybenzoate (C11H14O3)

Qing Fen Meng; Dong Hai Zhu; Zhi Cheng Tan; Ya Ping Dong; Wu Li

doi:10.4028/www.scientific.net/AMM.525.133

Paper Titles

The Effect of Precursor Mixing Temperature during Precipitation Process on the Size of ZnO Nanoparticles and the Dispersion of ZnO@SiO₂ Core-Shell Nanostructure
p.108

Lightweight Study on Axial Crushing Thin Cylindrical Tubes of Steel and Aluminum Alloy Based on Equal Energy Absorption
p.117

Hydrothermal Synthesis Nano-SrTiO₃ Powder and the Factors Control
p.123

Femtosecond Laser Machining of Silica and Transparent Materials
p.128

Heat Capacities and Standard Molar Enthalpy of Formation of Butyl 4-Hydroxybenzoate (C₁₁H₁₄O₃)
p.133

Low-Temperature Heat Capacities and Thermodynamic Properties of a New Complex [Na(H₂O)₂]₆[MoCo₆O₁₂(H₂O)₁₂]•4.3H₂O(s)
p.141

Studies on the Sorption of Benzene over DX 09 Carbon
p.146

Nano-Gold Particles on Cerium Oxide for Catalytic Combustion of Formaldehyde
p.150

Effects of Yttrium on Cyclic Oxidation Resistance of Co-10Cr-5Si Alloy at 700 °C
p.154

HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 525Heat Capacities and Standard Molar Enthalpy of...

Heat Capacities and Standard Molar Enthalpy of Formation of Butyl 4-Hydroxybenzoate (C₁₁H₁₄O₃)

Abstract:

Low-temperature heat capacities of butyl 4-hydroxybenzoate have been measured by a high precision automated adiabatic calorimeter over the temperature range from 79 to 399 K. The melting temperature, the molar enthalpy and entropy of the phase transition were determined to be (342.227 ± 0.054) K, (26.122 ± 0.192) kJmol^-1 and (76.33 ± 0.55) JK^-1mol^-1.The thermodynamic functions (H_T-H_298.15K) and (S_T- S_298.15K) were calculated in the range from 80 to 400 K with the interval of 5 K. The constant-volume energy and standard molar enthalpy of combustion have been determined, _cU (C₁₁H₁₄O₃,s) =-(5760.30 ± 2.70) kJmol^-1 and _cH_m⁰ (C₁₁H₁₄O₃, s) =-(5765.26 ± 2.70) kJmol^-1, by means of a precision oxygen-bomb combustion calorimeter at T = 298.15 K. The standard molar enthalpy of formation has been derived, _fH_m⁰ (C₁₁H₁₄O₃, s) =-( 564.16 ± 4.41) kJmol^-1, from the standard molar enthalpy of combustion in combination with other auxiliary thermodynamic quantities through a Hess thermochemical cycle.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Applied Mechanics and Materials (Volume 525)

Pages:

133-140

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.525.133

Citation:

Cite this paper

Online since:

February 2014

Authors:

Qing Fen Meng*, Dong Hai Zhu, Zhi Cheng Tan, Ya Ping Dong, Wu Li

Keywords:

Adiabatic Calorimetry, Butyl 4-hydroxybenzoate, Heat Capacity, Thermodynamic Function

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

* - Corresponding Author

References

[1] D.M. Maric, P.F. Meier and S.K. Estreicher: Mater. Sci. Forum Vol. 83-87 (1992), p.119.

Google Scholar

[1] M.G. Soni, I.G. Carabin, G.A. Burdock: Food. Chem. Toxic. Vol. 43 (2005), p.985.

Google Scholar

[2] Y. Nakagawa, G. Moore: Biochem Pharm. Vol. 58 (1999), p.811.

Google Scholar

[3] Y. Nakagawa, P. Moldéus: Biochem Pharm. Vol. 55 (1998), p. (1907).

Google Scholar

[4] F. A. Restaino, A. N. Martin: J. Pharm. Sci. Vol. 53 (1964), p.636.

Google Scholar

[5] K. S. Alexander , J. W. Mauger, H. Petersen, A. N. Paruta:J. Pharm. Sci. Vol. 66 (1977), p.42.

Google Scholar

[6] G. L. Perlovich, S. V. Rodionov, A. Bauer-Brandl: Eur. J. Pharm. Sci. Vol. 24 (2005), p.25.

Google Scholar

[7] S. A. Masten. Butylparaben. [CAS No. 94-26-8]. Review of Toxicological Literature. (2005).

Google Scholar

[8] Z.C. Tan, G.Y. Sun, Y. Sun, A.X. Yin, W.B. Wang, J.C. Ye, L.X. Zhou:J. Therm. Anal. Vol. 45 (1995), p.59.

Google Scholar

[9] Z.C. Tan, B.P. Liu, J.B. Yan, L.X. Sun: Computers and Applied Chemistry Vol. 20 (2003), p.265.

Google Scholar

[10] D. G. Archer: J. Phys. Chem. Ref. Data. Vol. 22 (1993), p.1441.

Google Scholar

[11] L. M. Zhang, Z. C. Tan, S. D. Wang, D. Y. Wu: Thermachim. Acta. Vol. 299 (1997), p.13.

Google Scholar

[12] X. M. Wu, Z.C. Tan, S. H. Meng, C.X. Sun, F.D. Wang, S. S. Qu. Thermachim. Acta. Vol. 359 (2000), p.103.

Google Scholar

[13] Hagedorn-Leweke, Ursula, Lippold, Bernhard C: Pharm. Res. Vol. 12 (1995), p.1354.

Google Scholar

[14] J. D. Cox. J. Chem: Thermodyn. Vol. 10 (1978), p.903.

Google Scholar

[15] J. M. Peter, N. T. Barry:J. Phys. Chem. Ref. Data. Vol. 28 (1999), p.1713.

Google Scholar