Acta Phys. -Chim. Sin. ›› 2000, Vol. 16 ›› Issue (12): 1115-1118.doi: 10.3866/PKU.WHXB20001210

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Thermovhemical Study of the Reaction of Lanthanum Chloride Coordinated with Glycine

Zhou Chuan-Pei, Chen Wen-Sheng, Liu Yi, Li Lin-Wei, Qu Song-Sheng   

  1. College of Chemistry and Environment Science,Wuhan 430072|Hubei College of Pharmacy and Clinical LabortoryScience,Wuhan 430064|Hubei Education College,Wuhan 430060
  • Received:2000-04-18 Revised:2000-07-10 Published:2000-12-15
  • Contact: Liu Yi E-mail:Liu Yi@Public.wh.hb.cn

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Abstract:

The reaction enthalpy of coordination reaction of lanthanum chloride with Glycine is determined by solution calorimetry in an isoperibel reaction calorimeter.The calormetric solvent is the solution of hydrochloric acid (2 mol L-1),a new thermochemical cycle is designed.According to the results,the following date: ΔrHΘm(298.2K)=-4.310kJ mol-1 ΔrHΘm(La(Gly)3Cl3 5H2O,s,298.2K)=-4222.93kJ mol-1 were obtained.

Key words: Thermochemistry, Lanthanum cholride, Glycine, Standard enthalpy of formation