298.15K下Li_2B_4O_7-H_2O体系水蒸汽分压及渗透系数的等压测定和离子相互作用模型

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	298.15K下Li_2B_4O_7-H_2O体系水蒸汽分压及渗透系数的等压测定和离子相互作用模型
	张爱云 ; 姚燕 ; 宋彭生
刊名	高等学校化学学报
	2004-10-15
期号	10 页码:1362-1364
关键词	Li2B4O7-H2O体系等压法渗透系数饱和蒸汽压离子相互作用模型
英文摘要	Isopiestic molalities, vapor pressures and osmotic coefficients of aqueous Li 2B 4O 7 solutions from 0.027 5 to 2.939 7 mol/kg were determined at 298.15 K by using an improved apparatus. The rule of the changes in vapor pressure over aqueous Li 2B 4O 7 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, B 3O 3(OH) - 4 and B 4O 5(OH) 2- 4 in Li 2B 4O 7(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 0.005 5 for the ion-interaction model.
语种	中文
公开日期	2013-02-27
内容类型	期刊论文
源URL	[http://ir.isl.ac.cn/handle/363002/548]
专题	青海盐湖研究所_青海盐湖研究所知识仓储
推荐引用方式 GB/T 7714	张爱云,姚燕,宋彭生. 298.15K下Li_2B_4O_7-H_2O体系水蒸汽分压及渗透系数的等压测定和离子相互作用模型[J]. 高等学校化学学报,2004(10):1362-1364.
APA	张爱云,姚燕,&宋彭生.(2004).298.15K下Li_2B_4O_7-H_2O体系水蒸汽分压及渗透系数的等压测定和离子相互作用模型.高等学校化学学报(10),1362-1364.
MLA	张爱云,et al."298.15K下Li_2B_4O_7-H_2O体系水蒸汽分压及渗透系数的等压测定和离子相互作用模型".高等学校化学学报 .10(2004):1362-1364.