Low-temperature heat-capacity and standard molar enthalpy of formation of copper L-threonate hydrate Cu(C4H6O5)center dot 0.5H(2)O(s)
文献类型：期刊论文
| 作者 | Qing, W; Chen, SP; Gao, SL; Tan, ZC; Di, YY; Shi, QZ |
| 刊名 | thermochimica acta
 |
| 出版日期 | 2006-02-15 |
| 卷号 | 441期号:2页码:132-136 |
| 关键词 | Cu(C4H6O5)center dot 0.5H(2)O(s) low-temperature heat-capacity adiabatic calorimetry rotating-bomb combustion calorimetry standard molar enthalpy of formation |
| 产权排序 | 2;4 |
| 通讯作者 | di yy |
| 英文摘要 | the solid copper l-threonate hydrate, cu(c4h6o5)center dot 0.5h(2)o, was synthesized by the reaction of l-threonic acid with copper dihydrocarbonate and characterized by means of chemical and elemental analyses, ir and tg-dtg. low-temperature heat-capacity of the title compound has been precisely measured with a small sample precise automated adiabatic calorimeter over the temperature range from 77 to 390 k. an obvious process of the dehydration occurred in the temperature range between 353 and 370 k. the peak temperature of the dehydration of the compound has been observed to be 369.304 +/- 0.208 k by means of the heat-capacity measurements. the molar enthalpy, delta(d)h(m), of the dehydration of the resulting compound was of 16.490 +/- 0.063 kj mol(-1). the experimental molar heat capacities of the solid from 77 to 353 k and the solid from 370 to 390 k have been, respectively, fitted to tow polynomial equations with the reduced temperatures by least square method. the constant-volume energy of combustion of the compound, delta(c)u(m), has been determined as being - 1616.15 +/- 0.72 kj mol(-1) by an rbc-ii precision rotating-bomb combustion calorimeter at 298.15 k. the standard molar enthalpy of formation of the compound, delta(f)h(m)degrees, has been calculated to be - 1114.76 +/- 0.81 kj mol(-1) from the combination of the data of standard molar enthalpy of combustion of the compound with other auxiliary thermodynamic quantities. (c) 2005 elsevier b.v. all rights reserved. |
| WOS标题词 | science & technology ; physical sciences |
| 类目[WOS] | chemistry, analytical ; chemistry, physical |
| 研究领域[WOS] | chemistry |
| 关键词[WOS] | l-ascorbic-acid ; calorimeter ; complexes |
| 收录类别 | SCI |
| 原文出处 | true |
| 语种 | 英语 |
| WOS记录号 | WOS:000235417100005 |
| 公开日期 | 2010-11-30 |
| 源URL | [http://159.226.238.44/handle/321008/97899]  |
| 专题 | 大连化学物理研究所_中国科学院大连化学物理研究所 |
| 作者单位 | 1.NW Univ Xian, Dept Chem, Xian 710069, Peoples R China 2.Chinese Acad Sci, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China |
| 推荐引用方式 GB/T 7714 | Qing, W,Chen, SP,Gao, SL,et al. Low-temperature heat-capacity and standard molar enthalpy of formation of copper L-threonate hydrate Cu(C4H6O5)center dot 0.5H(2)O(s)[J]. thermochimica acta,2006,441(2):132-136. |
| APA | Qing, W,Chen, SP,Gao, SL,Tan, ZC,Di, YY,&Shi, QZ.(2006).Low-temperature heat-capacity and standard molar enthalpy of formation of copper L-threonate hydrate Cu(C4H6O5)center dot 0.5H(2)O(s).thermochimica acta,441(2),132-136. |
| MLA | Qing, W,et al."Low-temperature heat-capacity and standard molar enthalpy of formation of copper L-threonate hydrate Cu(C4H6O5)center dot 0.5H(2)O(s)".thermochimica acta 441.2(2006):132-136. |
入库方式： OAI收割
来源：大连化学物理研究所
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