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题名: Thermodynamic properties of hydrated sodium L-threonate Na(C4H7O5)center dot H2O(s)
作者: Di, You-Ying;  Tan, Zhi-Cheng;  Gao, Sheng-Li;  Chen, San-Ping;  Sun, Li-Xian
关键词: Na(C4H7O5)(H2O)-H-.(s) ;  adiabatic calorimetry ;  low-temperature heat capacity ;  thermodynamic property
刊名: THERMOCHIMICA ACTA
发表日期: 2006-09-01
DOI: 10.1016/j.tca.2006.05.016
卷: 448, 期:1, 页:56-58
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Analytical ;  Chemistry, Physical
研究领域[WOS]: Chemistry
英文摘要: Low-temperature heat capacities of the compound Na(C4H7O5)center dot H2O(s) have been measured with an automated adiabatic calorimeter. A solid-solid phase transition and dehydration occur at 290-318 K and 367-373 K, respectively. The enthalpy and entropy of the solid-solid transition are Delta H-trans(m) = (5.75 +/- 0.01) kJ mol(-1) and Delta S-trans(m) = (18.47 +/- 0.02) J K-1 mol(-1). The enthalpy and entropy of the dehydration are Delta H-d(m) = (15.35 +/- 0.03) kJ mol(-1) and Delta S-d(m) = (41.35 +/- 0.08) J K-1 mol(-1). Experimental values of heat capacities for the solids (I and II) and the solid-liquid mixture (111) have been fitted to polynomial equations. (c) 2006 Elsevier B.V. All rights reserved.
关键词[WOS]: L-ASCORBIC-ACID
语种: 英语
WOS记录号: WOS:000240359900011
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/140067
Appears in Collections:中国科学院大连化学物理研究所_期刊论文

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作者单位: 1.Liaocheng Univ, Coll Chem & Chem Engn, Liaocheng 252059, Shandong Prov, Peoples R China
2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China
3.NW Univ Xian, Dept Chem, Xian 710069, Peoples R China

Recommended Citation:
Di, You-Ying,Tan, Zhi-Cheng,Gao, Sheng-Li,et al. Thermodynamic properties of hydrated sodium L-threonate Na(C4H7O5)center dot H2O(s)[J]. THERMOCHIMICA ACTA,2006,448(1):56-58.
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