| Synthesis, Characterization and Thermochemistry of 2MgO：B2O3：1.5H2O |
| |
| 引用本文： | 刘志宏,赵莉,胡满成.Synthesis, Characterization and Thermochemistry of 2MgO：B2O3：1.5H2O[J].中国化学,2003,21(12):1569-1572. |
| |
| 作者姓名： | 刘志宏 赵莉 胡满成 |
| |
| 作者单位： | School of Chemistry and Materials Science，Shaanxi Normal University，Department of Biochemistry，Shaanxi Institute of Education，School of Chemistry and Materials Science，Shaanxi Normal University Xi'an，Shaanxi 710062，China，Xi'an，Shaanxi 710061，China，Xi'an，Shaanxi 710062，China |
| |
| 基金项目： | ProjectsupportedbytheNaturalScienceFoundationofShaanxiProvinceofChina (No .2 0 0 2B13 ) |
| |
| 摘 要： | Introduction 2MgO·B2 O3(Mg2 B2 O5)and 2MgO·B2 O3·H2 Omightbepreparedaswhiskermaterials .12MgO·B2 O3·H2 OnamedszaibelyiteisamagnesiumboratemineralwithastructuralformulaofMg2 B2 O4 (OH) 2 ].2 Itisdifficulttosynthesizethiscompoundinthelaboratory .Recently ,weobtainedasimilarcompound 2MgO·B2 O3·1 5H2 Owhenwetriedtopreparewhiskerof 2MgO·B2 O3·H2 Obythephasetransformationof 2MgO·2B2 O3·MgCl2 ·14H2 OinH3BO3solutionunderhydrothermalcondition .Itishope fultopreparewh…
|
| 关 键 词： | 合成 表征 热化学 2MgO：B2O3：1.5H2O 标准摩尔生成焓 镁硼酸盐 相转变 |
Synthesis,Characterization and Thermochemistry of 2MgO · B2O3 · 1.5H2O |
| |
| Zhi‐Hong Liu,U Zhao,Man‐Cheng Hu.Synthesis,Characterization and Thermochemistry of 2MgO · B2O3 · 1.5H2O[J].Chinese Journal of Chemistry,2003,21(12):1569-1572. |
| |
| Authors: | Zhi‐Hong Liu U Zhao Man‐Cheng Hu |
| |
| Abstract: | A new magnesium borate 2MgO‐B2O3‐1.5H2O has been synthesized by the method of phase transformation of double salt under hydrothermal condition and characterized by XRD, IR, Raman spectra and TG. The enthalpy of solution of 2MgO · B2O3 · 1.5H2O in 2.9842 mol‐L?1 HCl was determined. From a combination of this result with measured enthalpies of solution of H3BO3 in 2.9842 mol · L?1 HCl(aq.) and of MgO in (HCl + H3BO3) solution, together with the standard molar enthalpies of formation of MgO(s), H3BO3(s), and H2O(1), the standard molar enthalpy of formation of‐(3019.76 ± 1.79) kJ · mol?1 of 2MgO · B2O3 · 1. 5H2O was obtained. 2MgO · B2O3 · 1.5H2O, synthesis, characterization, standard molar enthalpy of formation |
| |
| Keywords: | |
| 本文献已被 CNKI 等数据库收录！ |
