Nickolov Z S, Miller J D
Department of Metallurgical Engineering, University of Utah, Salt Lake City, UT 84112, USA.
J Colloid Interface Sci. 2005 Jul 15;287(2):572-80. doi: 10.1016/j.jcis.2005.02.001.
Water structure making/breaking studies in solutions of five alkali halide salts (KF, KI, NaI, CsF and CsCl) in 4 wt% D(2)O in H(2)O mixtures have been performed by FTIR analysis of the OD stretching band in the full solubility range. The proposed method gives a microscopic picture of the water structure making/breaking character of the salts in terms of the hydrogen bonding between the water molecules in the solution. With the exception of CsCl, there is a very good correlation of the structure making/breaking character of the salts determined by FTIR analysis, and the viscosity coefficients of the solutions. The results fully support and explain previous studies of bubble attachment to microscopic salt particles of the above salts. The investigations support the primary importance of interfacial water structure in the explanation of the flotation of alkali halide salts in their brines.
通过对 OD 伸缩带在全溶解度范围内进行傅里叶变换红外光谱（FTIR）分析，对五种碱金属卤化物盐（KF、KI、NaI、CsF 和 CsCl）在 H₂O 中 4 wt% D₂O 混合物溶液中的水结构形成/破坏情况进行了研究。所提出的方法根据溶液中水分子之间的氢键，给出了盐的水结构形成/破坏特征的微观图像。除 CsCl 外，FTIR 分析确定的盐的结构形成/破坏特征与溶液的粘度系数之间存在非常好的相关性。结果充分支持并解释了先前关于气泡附着于上述盐的微观盐颗粒的研究。这些研究支持了界面水结构在解释碱金属卤化物盐在其盐水中的浮选方面的首要重要性。
