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题名: Heat capacity and thermal decomposition of 1,6-bis(diphenylphosphino)hexane
作者: Zhang, JB;  Tan, ZC;  Gao, XG;  Meng, SH;  Li, L
关键词: 1,6-bis(diphenylphosphino)hexane (BDPH) ;  DSC ;  heat capacity ;  TG ;  thermal decomposition
刊名: THERMOCHIMICA ACTA
发表日期: 1998-11-25
卷: 322, 期:2, 页:89-94
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: A thermochemical study of 1,6-bis(diphenylphosphino)hexane(BDPH) has been performed using adiabatic calorimetry, differential scanning calorimetry (DSC) and thermogravimetric analysis (TG). The low-temperature heat capacity of BDPH was determined precisely with a small-sample automated adiabatic calorimeter in the temperature range from 80 to 350 K. No indication of any phase transition or thermal anomaly was observed in this temperature range. The high-temperature heat capacity of BDPH was measured with a differential scanning calorimeter in the temperature range from 310 to 730 K. From the DSC curve obtained for this compound, a solid-liquid transition was found at 399.4 K and the enthalpy and entropy of transition were evaluated at 66.8 kJ mol(-1) and 167.2 J K-1 mol(-1), respectively. In addition, an endothermal change was observed between 690 and 710 K. The heat of reaction corresponding to the change was determined to be 81.6 kJ mol(-1). The TG analysis of BDPH was carried out in the temperature range from 300 to 800 K, from which it was found that this compound starts to decompose at 690 K and decomposes almost completely at 710 K in a single step. (C) 1998 Elsevier Science B.V.
语种: 英语
WOS记录号: WOS:000077223400001
Citation statistics: 
内容类型: 期刊论文
URI标识: http://cas-ir.dicp.ac.cn/handle/321008/138498
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.Acad Sinica, Dalian Inst Chem Phys, Thermochem Lab, Dalian 116023, Peoples R China

Recommended Citation:
Zhang, JB,Tan, ZC,Gao, XG,et al. Heat capacity and thermal decomposition of 1,6-bis(diphenylphosphino)hexane[J]. THERMOCHIMICA ACTA,1998,322(2):89-94.
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