Abstract
An exothermic reaction between aluminum hydride (AlH3) and water was observed in our laboratory. The reaction process of AlH3 and water was studied using a microcalorimeter. The results show that the reaction enthalpies of AlH3 with water and the enthalpies of formation of AlH3 at T = (313.15, 318.15, 323.15, 328.15) K are (−405.10, −405.56, −406.02 and −406.48) kJ mol−1, and (−10.81, −10.59, −10.36, −10.13) kJ mol−1, respectively. The standard enthalpy of formation and standard molar heat capacity of AlH3 obtained by an extrapolation method are −11.49 kJ mol−1 and 45.22 J mol−1 K−1, respectively. The values of activation energy E, pre-exponential factor A and the reaction order n for the reaction of AlH3 and water over the temperature range from 313.15 to 328.15 K are 69.41 kJ mol−1, 108.46 s−1 and about 1.033, respectively.
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This study was financially supported by the National Natural Science Foundation of China (Grant No. 21173163) and (Grant No. 21473131).
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Li, N., Zhao, F.Q., Luo, Y. et al. Study on thermodynamics and kinetics for the reaction of aluminum hydride and water by microcalorimetry. J Therm Anal Calorim 120, 1847–1851 (2015). https://doi.org/10.1007/s10973-015-4493-4
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DOI: https://doi.org/10.1007/s10973-015-4493-4