SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (3): 319-323.DOI: 10.1016/j.cjche.2016.11.008

• Chemical Engineering Thermodynamics • Previous Articles     Next Articles

Investigation on specific heat capacity and thermal behavior of sodium hydroxyethyl sulfonate

Hongying Hao1,2, Yadong Zhang1, Xiaoya Chen1   

  1. 1 School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China;
    2 Medical School, HuangHe Science and Technology College, Zhengzhou 450063, China
  • Received:2016-09-19 Revised:2016-11-19 Online:2017-04-15 Published:2017-03-28

Investigation on specific heat capacity and thermal behavior of sodium hydroxyethyl sulfonate

Hongying Hao1,2, Yadong Zhang1, Xiaoya Chen1   

  1. 1 School of Chemical Engineering and Energy, Zhengzhou University, Zhengzhou 450001, China;
    2 Medical School, HuangHe Science and Technology College, Zhengzhou 450063, China
  • 通讯作者: Yadong Zhang

Abstract: The thermal decomposition process was studied by the TG-DTA analyzer. The results show that the decomposition process of sodiumhydroxyethyl sulfonate consisted of three stages:themass loss for the first, the second and third stagesmay be about the groups of CH3CH2OH, CH3CHO and SO2 volatilized, respectively. The decomposition residuum of three stages was analyzed by FT-IR, and the results of FT-IR agreed with the decomposition process predicted by theoreticalweight loss. The specific heat capacity of sodiumhydroxyethyl sulfonatewas determined by differential scanning calorimetry (DSC). The melting temperature and melting enthalpy were obtained to be 465.41 K and 25.69 kJ·mol-1, respectively. The molar specific heat capacity of sodium hydroxyethyl sulfonate was determinated from 310.15 K to 365.15 K and expressed as a function of temperature.

Key words: Sodium hydroxyethyl sulfonate, Melting temperature, Specific heat capacity, Thermal decomposition

摘要: The thermal decomposition process was studied by the TG-DTA analyzer. The results show that the decomposition process of sodiumhydroxyethyl sulfonate consisted of three stages:themass loss for the first, the second and third stagesmay be about the groups of CH3CH2OH, CH3CHO and SO2 volatilized, respectively. The decomposition residuum of three stages was analyzed by FT-IR, and the results of FT-IR agreed with the decomposition process predicted by theoreticalweight loss. The specific heat capacity of sodiumhydroxyethyl sulfonatewas determined by differential scanning calorimetry (DSC). The melting temperature and melting enthalpy were obtained to be 465.41 K and 25.69 kJ·mol-1, respectively. The molar specific heat capacity of sodium hydroxyethyl sulfonate was determinated from 310.15 K to 365.15 K and expressed as a function of temperature.

关键词: Sodium hydroxyethyl sulfonate, Melting temperature, Specific heat capacity, Thermal decomposition