硼酸盐水溶液中硼物种的存在形式及影响因素  

The polyborate Present in aqueous solutions containing boron and the affection factors

作　　者：张爱芸[1] 姚燕[2] 

机构地区：[1]河南理工大学,河南焦作454000 [2]中国科学院青海盐湖研究所,青海西宁810008

出　　处：《盐湖研究》2007年第2期50-56,共7页Journal of Salt Lake Research

基　　金：国家自然科学基金资助项目(No.20373084);黑龙江省教育厅资助项目(No.10551270)

摘　　要：根据以往相关的研究报道,综述了含硼水溶液中硼物种的存在形式,及其与总硼浓度、溶液pH值、溶液离子强度、温度、压力等因素的关系。随着总硼浓度的提高,硼氧配阴离子的聚合度加大,在pH值较高或较低时,聚硼离子的含量较少,主要以H3BO3和B(OH)4-的形式存在;同时,指出含硼水溶液存在普遍的过饱和现象,我国含硼盐湖卤水中的硼物种可以用B4O72-的综合统计形式表示。总结了硼酸盐水溶液中各种硼氧配阴离子的FT-IR,Raman和NMR的归属。In this paper, the existence forms of boron in aqueous solutions containing boron and the relations of it with the factors such as concentration of total boron, pH, ionic strength, temperature, pressure and so on, were summarized based on the reported data. It is pointed out that the polymerization degree of boron increases with the elevation of concentration of total boron. The polyborates present in aqueous solutions containing boron are little when the pH is very high or low, with H3BO3 and B（OH）4^- as the main species. It is stressed that the su- persaturation is universal for aqueous solutions containing boron,The FT-IR, Raman and NMR spectra of some polyborates have been given. The form of borate existing in the brine containing boron can be expressed as the comprehensive statistic one of tetraborate.

关 键 词：硼氧配阴离子 聚合度 过饱和 含硼盐湖卤水 综合统计形式 

分 类 号：O541[理学—物理]