Thermochemistry of dipotassium calcium octaborate dodecahydrate

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	Thermochemistry of dipotassium calcium octaborate dodecahydrate
	Jia, YZ ; Li, J ; Gao, SY ; Xia, SP
	1999-09-06
发表期刊	THERMOCHIMICA ACTA
卷号	335 期号:1-2 页码:1-4
关键词	K2o Center Dot Cao Center Dot 4b(2)o(3)Center Dot 12h(2)o Standard Molar Enthalpy Of Formation Solution Calorimetry Molar Enthalpy Of Solution Aqueous Hydrochloric Acid Solution
摘要	The enthalpies of solution of K2O . CaO . 4B(2)O(3). 12H(2)O in approximately 1 mol dm(-3) aqueous hydrochloric acid, and of KCl in aqueous (hydrochloric acid+boric acid+calcium oxide) were determined. Together with the previously determined enthalpies of solution of H3BO3 in approximately 1 mol dm(-3) HCl(aq), and of CaO in aqueous (hydrochloric acid+boric acid), the standard molar enthalpy of formation of -(10308.00+/-6.56) kJ mol(-1) for K2O . CaO . 4B(2)O(3). 12H(2)O was obtained from the standard molar enthalpies of formation of CaO(s), H3BO3(s), KCl(s), and H2O(l). The standard molar entropy of formation of K2O . CaO . 4B(2)O(3). 12H(2)O was calculated from the thermodynamic relation with the standard molar Gibbs free energy of formation of K2O . CaO . 4B(2)O(3). 12H(2)O computed from the group contribution method. (C) 1999 Elsevier Science B.V. All rights reserved.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/6020
专题	青海盐湖研究所知识仓储中国科学院青海盐湖研究所
作者单位	1.Lanzhou Univ, Dept Chem, Lanzhou 730000, Peoples R China 2.Chinese Acad Sci, Inst Salt Lakes, Xian Branch, Xian 710043, Peoples R China
推荐引用方式 GB/T 7714	Jia, YZ,Li, J,Gao, SY,et al. Thermochemistry of dipotassium calcium octaborate dodecahydrate[J]. THERMOCHIMICA ACTA,1999,335(1-2):1-4.
APA	Jia, YZ,Li, J,Gao, SY,&Xia, SP.(1999).Thermochemistry of dipotassium calcium octaborate dodecahydrate.THERMOCHIMICA ACTA,335(1-2),1-4.
MLA	Jia, YZ,et al."Thermochemistry of dipotassium calcium octaborate dodecahydrate".THERMOCHIMICA ACTA 335.1-2(1999):1-4.