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Investigation on Phase Transitions and Thermodynamic Properties of 1-Dodecylamine Hydrochloride (C12H25NH3Cl)(s) by an Improved Adiabatic Calorimeter
Kong, Yu-Xia1; Di, You-Ying1; Zhang, Ya-Qian1; Yang, Wei-Wei1; Tan, Zhi-Cheng2; You-Ying Di
KeywordAdiabatic Calorimetry 1-dodecylamine Hydrochloride Low-temperature Heat Capacity Phase Transitions
Source PublicationINTERNATIONAL JOURNAL OF THERMOPHYSICS
2009-12-01
DOI10.1007/s10765-009-0675-2
Volume30Issue:6Pages:1960-1974
Indexed BySCI
SubtypeArticle
Department2
Funding Project207
Contribution Rank2;5
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
WOS SubjectThermodynamics ; Chemistry, Physical ; Mechanics ; Physics, Applied
WOS Research AreaThermodynamics ; Chemistry ; Mechanics ; Physics
WOS KeywordSYNTHETIC SAPPHIRE ALPHA-AL2O3 ; TEMPERATURE HEAT-CAPACITIES ; STANDARD REFERENCE MATERIAL ; THERMAL-ENERGY STORAGE ; MOLAR ENTHALPY ; RANGE ; CONSTRUCTION ; SYSTEMS ; ACID
Abstract1-Dodecylamine hydrochloride was synthesized by the solvent-thermal method. The structure and composition of the compound were characterized by chemical and elemental analyses, the X-ray powder diffraction technique, and X-ray crystallography. The main structure and performance of an improved automated adiabatic calorimeter are described. Low-temperature heat capacities of the title compound are measured by the new adiabatic calorimeter over the temperature range from 78 K to 397 K. Two solid-to-solid phase transitions have been observed at the peak temperatures of (330.78 +/- 0.43) K and (345.09 +/- 0.16) K. The molar enthalpies of the two phase transitions of the substance were determined to be (25.718 +/- 0.082) kJ center dot mol(-1) and (5.049 +/- 0.055) kJ center dot mol(-1), and their corresponding molar entropies were calculated as (77.752 +/- 0.250) J center dot mol(-1) center dot K-1 and (14.632 +/- 0.159) J center dot mol(-1) center dot K-1, respectively, based on the analysis of heat-capacity curves. Experimental values of heat capacities for the title compound have been fitted to two polynomial equations. In addition, two solid-to-solid phase transitions and a melting process of C12H25NH3Cl(s) have been verified by differential scanning calorimetry.
Language英语
URL查看原文
WOS IDWOS:000272616400016
Citation statistics
Cited Times:10[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/102869
Collection中国科学院大连化学物理研究所
Corresponding AuthorYou-Ying Di
Affiliation1.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Shandong, Peoples R China
2.Chinese Acad Sci, Thermochem Lab, Dalian Inst Chem Phys, Dalian 116023, Peoples R China
Recommended Citation
GB/T 7714
Kong, Yu-Xia,Di, You-Ying,Zhang, Ya-Qian,et al. Investigation on Phase Transitions and Thermodynamic Properties of 1-Dodecylamine Hydrochloride (C12H25NH3Cl)(s) by an Improved Adiabatic Calorimeter[J]. INTERNATIONAL JOURNAL OF THERMOPHYSICS,2009,30(6):1960-1974.
APA Kong, Yu-Xia,Di, You-Ying,Zhang, Ya-Qian,Yang, Wei-Wei,Tan, Zhi-Cheng,&You-Ying Di.(2009).Investigation on Phase Transitions and Thermodynamic Properties of 1-Dodecylamine Hydrochloride (C12H25NH3Cl)(s) by an Improved Adiabatic Calorimeter.INTERNATIONAL JOURNAL OF THERMOPHYSICS,30(6),1960-1974.
MLA Kong, Yu-Xia,et al."Investigation on Phase Transitions and Thermodynamic Properties of 1-Dodecylamine Hydrochloride (C12H25NH3Cl)(s) by an Improved Adiabatic Calorimeter".INTERNATIONAL JOURNAL OF THERMOPHYSICS 30.6(2009):1960-1974.
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