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Study on thermochemistry of hydrated potassium monoborate
Zhu, LX; Gao, SY; Wang, B; Xia, SP
2003-03-01
发表期刊CHINESE JOURNAL OF INORGANIC CHEMISTRY
ISSN1001-4861
卷号19期号:3页码:333-336
文章类型Article
摘要Hydrated potassium monoborate (KBO2 . 4/3H(2)O) was obtained from an aqueous solution in a mole ratio of K2O: B2O3 = 2: 1 and characterized by powder X-ray diffraction (XRD), infrared spectroscopy (FT-IR) and Raman spectroscopy. The enthalpy of solution of hydrated potassium monoborate, KBO2 . 4/3H(2)O, in approximately 1mol . dm(-3) aqueous hydrochloric acid was determined. Together with the previously determined enthalpies of solution of H3BO3 in approximately 1mol . dm(-3) HCl (aq) and of KCl in aqueous (hydrochloric acid + boric acid), the standard molar enthalpy of formation of - ( 1411.11 +/- 0. 84) kJ . mol(-1) for KBO2 . 4/3H(2)O was obtained from the standard molar enthalpies of formation of KCl(s), H3BO3(S), and H2O(l). The standard molar entropy of formation of - 422. 94J . K-1 . mol(-1) and standard molar entropy of 163. 47J . K-1 mol (-1) for KBO2 . 4/3H(2)O were calculated from the thermodynamic relations. A group contribution method is applicable to KBO2 . 4/3H(2)O.
关键词Kbo2 4/3h(2)o Standard Molar Enthalpy Of Formation Solution Calorimetry Molar Enthalpy Of Solution
WOS标题词Science & Technology ; Physical Sciences
收录类别SCI
语种英语
WOS研究方向Chemistry
WOS类目Chemistry, Inorganic & Nuclear
WOS记录号WOS:000181386300023
引用统计
文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/2354
专题青海盐湖研究所知识仓储
作者单位Acad Sinica, Xian Branch, Qinghai Inst Salt Lakes, Xian 710043, Peoples R China
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Zhu, LX,Gao, SY,Wang, B,et al. Study on thermochemistry of hydrated potassium monoborate[J]. CHINESE JOURNAL OF INORGANIC CHEMISTRY,2003,19(3):333-336.
APA Zhu, LX,Gao, SY,Wang, B,&Xia, SP.(2003).Study on thermochemistry of hydrated potassium monoborate.CHINESE JOURNAL OF INORGANIC CHEMISTRY,19(3),333-336.
MLA Zhu, LX,et al."Study on thermochemistry of hydrated potassium monoborate".CHINESE JOURNAL OF INORGANIC CHEMISTRY 19.3(2003):333-336.
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