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  Global Journal of Physical Chemistry. Volume 2, Issue 3 (2011) pp. 287-293
  Research Article
Standard Molar Enthalpy of Combustion and Formation of Ionic Liquid 1-Alkylimidazolium Bromine
  Xi-lian Wei*, Shi-zhou Fu, Zeng-bin Wei, You-ying Di, Jiu-qiang Liu, De-zhi Sun?, Bao-lin Yin, and Shao-hua Zhang  
College of Chemistry and Chemical Engineering, Liaocheng University, Liaocheng, Shandong 252059, P. R. China

Using an oxygen-bomb combustion calorimeter, the molar combustion heats of the ionic liquids 1-alkyl-3-methylimidazolium Bromine ([Cnmim] Br, where n=8, 10, 12, 14 and 16) were determined at (298.150±0.001) K. The standard molar combustion enthalpies  ΔcHmΘand the standard molar formation enthalpies Δf HmΘ were calculated. The contribution of one methylene group to the  ΔcHmΘ , and Δf HmΘ  was also estimated, respectively. The reliability of instrument was tested by naphthalene, the relative error was 0.15%; for the comparison between the experimental value and literature value about the standard combustion enthalpy of naphthalene.

  Alkylim idazolium bromine; ionic liquid; oxygen—bomb combustion calorimetry; enthalpy of combustion  

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