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Thermochemistry of hydrated ammonium borates
Jiang, W; Lixia, Z; Bo, W; Shuping, X
2005-01-20
发表期刊THERMOCHIMICA ACTA
卷号425期号:1-2页码:23-26
关键词Hydrated Ammonium Borate Standard Molar Enthalpy Of Formation Solution Calorimetry Molar Enthalpy Of Solution
摘要The enthalpies of solution of (NH4)(2)B4O7.4H(2)O (cr) and NH4B5O8.4H(2)O (cr) in approximately 1 mol dm(-3) aqueous hydrochloric acid solution, as well as the enthalpy of solution of NH4Cl (cr) in aqueous (hydrochloric acid + boric acid) have been measured by using a microcalorimeter. From these results and other auxiliary data, the standard molar enthalpies of formation Delta(f)H(m)(0) of (NH4)(2)B4O7.4H(2)O (cr) and NH4B5O8.4H(2)O (cr) have been derived to be (-4313.74 +/- 3.26) and (-4703.56 +/- 4.03) kJ mol(-1) at 298.15 K, respectively. Some other thermodynamic properties of the title borates, such as the standard molar entropies of formation and the standard molar entropies have also been calculated. (C) 2004 Published by Elsevier B.V.
语种英语
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文献类型期刊论文
条目标识符http://ir.isl.ac.cn/handle/363002/5622
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Chinese Acad Sci, Xian Branch, Inst Salt Lakes, Xian 710043, Shaanxi, Peoples R China
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Jiang, W,Lixia, Z,Bo, W,et al. Thermochemistry of hydrated ammonium borates[J]. THERMOCHIMICA ACTA,2005,425(1-2):23-26.
APA Jiang, W,Lixia, Z,Bo, W,&Shuping, X.(2005).Thermochemistry of hydrated ammonium borates.THERMOCHIMICA ACTA,425(1-2),23-26.
MLA Jiang, W,et al."Thermochemistry of hydrated ammonium borates".THERMOCHIMICA ACTA 425.1-2(2005):23-26.
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