| Synthesis and Thermodynamic Properties of MgO·B_2O_3·4H_2O |
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| 引用本文： | 刘志宏
,高世扬
,胡满成
,夏树屏.Synthesis and Thermodynamic Properties of MgO·B_2O_3·4H_2O[J].中国化学,2002,20(12):1519-1522. |
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| 作者姓名： | 刘志宏 高世扬 胡满成 夏树屏 |
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| 作者单位： | LIU，Zhi-Hong GAO，Shi-Yang HU，Man-ChengXIA，Shu-PingSchool of Chemistry and Materials Science，Shaanxi Normal University，Xi′an，Shaanxi 710062，China |
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| 基金项目： | theNationalNaturalScienceFoundationofChina (No.2 99710 32 ) |
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| 摘 要： | ＩｎｔｒｏｄｕｃｔｉｏｎＴｈｅｒｅａｒｅｍａｎｙｋｉｎｄｓｏｆｍａｇｎｅｓｉｕｍｂｏｒａｔｅｓ ,ｂｏｔｈｎａｔｕｒａｌａｎｄｓｙｎｔｈｅｔｉｃ .Ａｂｏｒａｔｅｄｏｕｂｌｅｓａｌｔ (2ＭｇＯ·2Ｂ2 Ｏ3 ·ＭｇＣｌ2 · 14Ｈ2 Ｏ)ｎａｍｅｄｃｈｌｏｒｏｐｉｎｎｏｉｔｅｗａｓｏｂ ｔａｉｎｅｄｆｒｏｍｔｈｅｎａｔｕｒａｌｃｏｎｃｅｎｔｒａｔｅｄｓａｌｔｌａｋｅｂｒｉｎｅ .1Ｉｎｏｒｄｅｒｔｏｆｉｎｄｔｈｅｆｏｒｍｉｎｇｒｅｌａｔｉｏｎｂｅｔｗｅｅｎｔｈｅｄｏｕｂｌｅｓａｌｔａｎｄｍａｇｎｅｓｉｕｍ ｂｏｒａ…
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| 关 键 词： | MgO·B 2O 3·4H 2O synthesis thermodynamic properties solution calorimetry |
Synthesis and Thermodynamic Properties of MgO·B2O3·4H2O |
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| Zhi‐Hong Liu,Shi‐Yang Gao,Man‐Cheng Hu,Shu‐Ping Xia.Synthesis and Thermodynamic Properties of MgO·B2O3·4H2O[J].Chinese Journal of Chemistry,2002,20(12):1519-1522. |
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| Authors: | Zhi‐Hong Liu Shi‐Yang Gao Man‐Cheng Hu Shu‐Ping Xia |
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| Abstract: | A new magnesium borate MgO·B2O3·4H2O was synthesized by the method of phase transformation of double salt and characterized by XRD, IR spectra and TG. The structural formula of this compound was Mg·B2O(OH)6]·H2O. The enthalpy of solution of MgO·B2O3·4H2O in HCl (1.0492 mol·L?1) was determined. With the incorporation of the standard molar enthalpies of formation of MgO (s), H3BO3(s), and H2O (1), the standard molar enthalpy of formation of ‐ (3135.31 ± 1.68) kJ·mol?1 of MgO·B2O3·4B2O was obtained. Thermodynamic properties of this compound were also calculated by group contribution method. |
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| Keywords: | MgO·B2O3·H2O synthesis thermodynamic properties solution calorimetry |
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