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Thermochemistry of hydrated rubidium tetraborate
Zhu, LX; Tao, Y; Gao, SY; Xia, SP
AbstractThe enthalpies of solution of Rb2B4O7.5.6H(2)O in approximately 1 mol dm(-3) aqueous hydrochloric acid and of RbCl in aqueous (hydrochloric acid+boric acid) were determined. From these results and the enthalpy of solution of H3BO3 in approximately 1 mol dm(-3) HCl(aq), the value of the molar enthalpy of formation of -5023.36 +/- 3.26 kJ mol(-1) for Rb2B4O7.5.6H(2)O was obtained by using the values for the standard molar enthalpies of formation of RbCl(s), H3BO3(s), and H2O(l). The standard molar entropy of formation of Rb2B4O7.5.6H(2)O was calculated from the thermodynamic relation of the standard molar enthalpy of formation with the standard molar Gibbs free energy of formation of Rb2B4O7.5.6H(2)O computed from a group contribution method. (C) 2003 Elsevier Science B.V. All rights reserved.
KeywordRb2b4o7 Center Dot 5.6h(2)o Standard Molar Enthalpy Of Formation Solution Calorimetry Molar Enthalpy Of Solution Aqueous Hydrochloric Acid Solution
WOS HeadingsScience & Technology ; Physical Sciences
Indexed BySCI
WOS Research AreaChemistry
WOS SubjectChemistry, Analytical ; Chemistry, Physical
WOS IDWOS:000185448300030
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Document Type期刊论文
AffiliationChinese Acad Sci, Inst Salt Lakes, Xian Branch, Xian 710043, Peoples R China
Recommended Citation
GB/T 7714
Zhu, LX,Tao, Y,Gao, SY,et al. Thermochemistry of hydrated rubidium tetraborate[J]. THERMOCHIMICA ACTA,2003,404(1-2):259-263.
APA Zhu, LX,Tao, Y,Gao, SY,&Xia, SP.(2003).Thermochemistry of hydrated rubidium tetraborate.THERMOCHIMICA ACTA,404(1-2),259-263.
MLA Zhu, LX,et al."Thermochemistry of hydrated rubidium tetraborate".THERMOCHIMICA ACTA 404.1-2(2003):259-263.
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