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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 shu

Design and Application of a Precise Isoperibol Combus-tion-Solution-Reaction Microcalorimeter

1.
College of Chemistry Biology and Environmental Engineering, Xiangnan University, Chenzhou 423043, P. R. China;
2.
College of Chemistry and Environmental Engineering, Yangtze University, Jingzhou 434023, P. R. China

Received Date: 26 December 2016
Revised Date: 20 February 2017

Fund Project: The project was supported by the National Natural Science Foundation of China (21273190) and Science and Technology Plan Projects of Hunan Province, China (2014TT2026).

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 C_calor=（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 △_CU_m,B^θ（cr,T=298.15K）=-（26425.99±10.70）J·g^-1 and △_CU_m,S^θ（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%.
- Combustion-solution-reaction microcalorimeter,
- Standard massic energy of combustion,
- Benzoic acid,
- Succinic acid
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