Study on Thermochemistry and Thermal Decomposition Kinetics of Dy(Tyr)(Gly)3Cl3·3H2O

Autor:	Zhong-Hai Zhang, S. S. Qu, Zong-Jun Ku, Yi Liu
Rok vydání:	2005
Předmět:	Chemistry Kinetics Thermal decomposition Enthalpy chemistry.chemical_element General Chemistry Kinetic energy Chloride Standard enthalpy of formation medicine Thermochemistry Dysprosium Physical chemistry medicine.drug
Zdroj:	Chinese Journal of Chemistry. 23:1146-1150
ISSN:	1614-7065 1001-604X
DOI:	10.1002/cjoc.200591146
Popis:	The complex of dysprosium chloride with glycine and L-tyrosine, Dy(Tyr)(Gly)3Cl3· 3H2O, was synthesized and characterized. The standard molar formation enthalpy of Dy(Tyr)(Gly)3Cl3· 3H2O at T=298.15 K was determined to be (-4287.10±2.14) kJ/mol. The kinetics of thermal decomposition of the complex was studied by non-isothermal TG-DTG curves. The kinetic parameters and mechanism function of the thermal decomposition reaction for its second step were proposed. The kinetic equation could be expressed as: dα/dT=3.14×1020s-1/βexp(-209.37 kJ·mol-1/RT)(1−α) 2.
Databáze:	OpenAIRE
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