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题名: Polyborates in Aqueous Sodium Borate Solution at 298.15 K
作者: Zhou, Y. Q.1;  Fang, C. H.1;  房艳1;  Zhu, F. Y.1;  Cao, L. D.1
刊名: ASIAN JOURNAL OF CHEMISTRY
出版日期: 2012
卷号: 24, 期号:1, 页码:29-32
关键词: Polyborstes ;  FT-Raman spectra ;  Aqueous sodium borate solutions ;  pH ;  Distribution
文章类型: Article
英文摘要: pH of aqueous sodium metaborate and pentaborate solutions were precisely measured as functions of concentration from dilute to supersaturation at 298.15 K. Coupling with Raman spectra of some super-saturation samples, a clear picture of the main polyborates and their equilibria was presented. At least five polyborates B(OH)(3), B(OH)(4)(-), B3O3(OH)(4)(-), B4O5(OH)(4)(2-) and B5O6(OH)(4-) exist in aqueous sodium borate solutions. In supersaturated aqueous sodium pentaborate solutions B5O6(OH)(4)(-), B3O3(OH)(4)(-) and B(OH)(3) are the main polyborates, B(OH)(4)(-), B4O5(OH)(4)(2-) present in a minor concentration. While, in aqueous sodium metaborate solutions, covering all the concentration range, B(OH)(4)(-) is the most important species other polyborate anions are less than 5 %. Relevant interactions mechanisms among polyborates were also suggested.
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Chemistry, Multidisciplinary
研究领域[WOS]: Chemistry
关键词[WOS]: RAMAN-SPECTROSCOPIC ANALYSIS ;  EQUILIBRIA ;  POLYANIONS ;  SPECTRA
收录类别: SCI
语种: 英语
WOS记录号: WOS:000300463900007
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.isl.ac.cn/handle/363002/2082
Appears in Collections:青海盐湖研究所知识仓储(2014年之前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Qinghai Inst Salt Lakes, CAS Key Lab Salt Lake Resources & Chem, Xining 810008, Peoples R China

Recommended Citation:
Zhou, Y. Q.,Fang, C. H.,Fang, Y.,et al. Polyborates in Aqueous Sodium Borate Solution at 298.15 K[J]. ASIAN JOURNAL OF CHEMISTRY,2012,24(1, 1):29-32.
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