Isopiestic determination of vapor pressures and osmotic coefficients and the ion-interaction model for Li2B4O7-H2O system at 298.15 K

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	Isopiestic determination of vapor pressures and osmotic coefficients and the ion-interaction model for Li2B4O7-H2O system at 298.15 K
	Zhang, AY ; Yao, Y ; Song, PS
	2004-10-10
发表期刊	CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE
卷号	25 期号:10 页码:1934-1936
关键词	Li2b4o7-h2o System Isopiestic Method Osmotic Coefficients Saturated Vapor Pressure Ion-interaction Model
摘要	Isopiestic molalities, vapor pressures and osmotic coefficients of aqueous Li2B4O7 solutions from 0.0275 to 2.9397 mol/kg were determined at 298.15 K by using an improved apparatus. The rule of the changes in vapor pressure over aqueous Li2B4O7 solutions was revealed, which indicated that the bond of borate anions with water are better than that of NaCl. The different formation reaction equilibria for the species containing boron of boric acid and borate anions B(OH)(4)(-), B3O3(OH)(4)(-) and B4O5(OH)(4)(2-) in Li2B4O7 (aq) solutions were taken into account. The stoichiometric equilibrium constants for the formation reactions of the boron species and the ion-interaction parameters were estimated simultaneously by using Pitzer equations of osmotic coefficient with minor modifications. Sixteen parameters were obtained with a standard deviation 0.0055 for the ion-interaction model.
语种	英语
引用统计
文献类型	期刊论文
条目标识符	http://ir.isl.ac.cn/handle/363002/5605
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	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Xining 810008, Peoples R China 2.Heilong Jiang Inst Sci & Technol, Haerbin 160000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, AY,Yao, Y,Song, PS. Isopiestic determination of vapor pressures and osmotic coefficients and the ion-interaction model for Li2B4O7-H2O system at 298.15 K[J]. CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,2004,25(10):1934-1936.
APA	Zhang, AY,Yao, Y,&Song, PS.(2004).Isopiestic determination of vapor pressures and osmotic coefficients and the ion-interaction model for Li2B4O7-H2O system at 298.15 K.CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE,25(10),1934-1936.
MLA	Zhang, AY,et al."Isopiestic determination of vapor pressures and osmotic coefficients and the ion-interaction model for Li2B4O7-H2O system at 298.15 K".CHEMICAL JOURNAL OF CHINESE UNIVERSITIES-CHINESE 25.10(2004):1934-1936.