Structure of aqueous potassium tetraborate solutions by X-ray scattering

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	Structure of aqueous potassium tetraborate solutions by X-ray scattering
	Fang, C. H.1 ; Zhu, F. Y.1,2 ; Fang, Y.1 ; Zhou, Y. Q.1 ; Tao, S.1,2; Xu, S.1,2
	2013-03-01
发表期刊	PHYSICS AND CHEMISTRY OF LIQUIDS
卷号	51 期号:2 页码:218-232
关键词	Potassium Tetraborate X-ray Scattering Chemical Species Distribution
摘要	The borate species in aqueous potassium tetraborate solution were obtained according to the chemical species distribution diagram and the Raman spectrum. X-ray scattering is used to study the solutions with saltwater molar ratios of 1:25, 1:20 and 1:15 at 298 and 323K. The model calculation and model refinement programmes are used to calculate the structure parameters r ij , b ij and n ij . It manifests that the first hydration distance of K+ is approximate to 0.29nm, with an average hydrated number of 8.0. The hydration bond peak is around 0.278nm and the coordination number is from 1.9 to 2.4. Borate anions coordinate with K+ ions in the mono-dentate form, the average distance of KB is 0.38nm. The distance of BH2O in hydrated anion is from 0.37 to 0.38nm with the hydrated number 49. The other interaction such as water shared pair interaction is also discussed.
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/363002/4423
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盐湖资源与化学实验室
作者单位	1.Chinese Acad Sci, Qinghai Inst Salt Lakes, Key Lab Salt Resources & Chem, Xining 810008, Qinghai, Peoples R China 2.Univ Chinese Acad Sci, Coll Chem & Chem Engn, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Fang, C. H.,Zhu, F. Y.,Fang, Y.,et al. Structure of aqueous potassium tetraborate solutions by X-ray scattering[J]. PHYSICS AND CHEMISTRY OF LIQUIDS,2013,51(2):218-232.
APA	Fang, C. H.,Zhu, F. Y.,Fang, Y.,Zhou, Y. Q.,Tao, S.,&Xu, S..(2013).Structure of aqueous potassium tetraborate solutions by X-ray scattering.PHYSICS AND CHEMISTRY OF LIQUIDS,51(2),218-232.
MLA	Fang, C. H.,et al."Structure of aqueous potassium tetraborate solutions by X-ray scattering".PHYSICS AND CHEMISTRY OF LIQUIDS 51.2(2013):218-232.