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Low-temperature heat capacities and thermodynamic properties of hydrated sodium cupric arsenate [NaCuASO(4) center dot 1.5H2O(s)]
Chen Jing-tao; Di You-ying; Tan Zhi-cheng; Sun Li-xian
关键词Nacuaso4 Center Dot 1. 5h(2)o(s) Adiabatic Calorimetry Heat Capacity Thermodynamic Function Dehydration Process
刊名CHEMICAL RESEARCH IN CHINESE UNIVERSITIES
2007-09-01
ISSN1005-9040
23期:5页:574-578
收录类别SCI
文章类型Article
部门归属15
项目归属1504
产权排名3;3
WOS标题词Science & Technology ; Physical Sciences
类目[WOS]Chemistry, Multidisciplinary
研究领域[WOS]Chemistry
英文摘要Low-temperature heat capacities of the solid compound NaCuAsO4 center dot 1.5 H2O (s) were measured using a precision automated adiabatic calorimeter over a temperature range of T = 78 K to T = 390 K. A dehydration process occurred in the temperature range of T = 368-374 K. The peak temperature of the dehydration was observed to be T-D = ( 371.828 +/- 0.146) K by means of the heat-capacity measurement. The molar enthalpy and entropy of the dehydration were Delta H-D(m) = (18.571 +/- 0.142) kJ/mol and Delta S-D(m) = (49.946 +/- 0.415) J/( K center dot mol), respectively. The experimental values of heat capacities for the solid( I) and the solid-liquid mixture( 11) were respectively fitted to two polynomial equations by the least square method. The smoothed values of the molar heat capacities and the fundamental thermodynamic functions of the sample relative to the standard reference temperature 298.15 K were tabulated at an interval of 5 K.
语种英语
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WOS记录号WOS:000250324000020
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://cas-ir.dicp.ac.cn/handle/321008/99625
专题中国科学院大连化学物理研究所
通讯作者Di You-ying
作者单位1.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Peoples R China
2.Shaanxi Educ Coll, Dept Chem, Xian 710061, Peoples R China
3.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
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Chen Jing-tao,Di You-ying,Tan Zhi-cheng,et al. Low-temperature heat capacities and thermodynamic properties of hydrated sodium cupric arsenate [NaCuASO(4) center dot 1.5H2O(s)][J]. CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,2007,23(5):574-578.
APA Chen Jing-tao,Di You-ying,Tan Zhi-cheng,&Sun Li-xian.(2007).Low-temperature heat capacities and thermodynamic properties of hydrated sodium cupric arsenate [NaCuASO(4) center dot 1.5H2O(s)].CHEMICAL RESEARCH IN CHINESE UNIVERSITIES,23(5),574-578.
MLA Chen Jing-tao,et al."Low-temperature heat capacities and thermodynamic properties of hydrated sodium cupric arsenate [NaCuASO(4) center dot 1.5H2O(s)]".CHEMICAL RESEARCH IN CHINESE UNIVERSITIES 23.5(2007):574-578.
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