Citation:
LI Xu, LI Qiang-Guo, JIANG Jian-Hong, GU Hui-Wen, LI Chuan-Hua, XIAO Sheng-Xiong, LI Xia. Design and Application of a Precise Isoperibol Combus-tion-Solution-Reaction Microcalorimeter[J]. Acta Physico-Chimica Sinica,
;2017, 33(6): 1114-1122.
doi:
10.3866/PKU.WHXB201702213
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The SRC-100 type solution-reaction calorimeter was improved to a more precise and versatile isoperibol combustion-solution-reaction microcalorimeter. The energy equivalent of the calorimeter was calibrated to be Ccalor=(987.63±0.61)J·K-1 by the electric calibration method. The standard massic energy of combustion of benzoic acid and succinic acid were determined by the developed isoperibol combustion-solution-reaction microcalorimeter as △CUm,Bθ(cr,T=298.15K)=-(26425.99±10.70)J·g-1 and △CUm,Sθ(cr,T=298.15K)=-(12621.97±5.30)J·g-1, respec-tively. The uncertainty of the measurement was less than 0.04% and the accuracy was higher than 0.05%.
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