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引言众所周知,盐溶于液体中时,必然伴随着溶剂化过程的进行。即溶剂分子通过它们和盐离子的相互作用,聚集在离子周围的过程。这些聚集于离子周围的溶剂分子叫溶剂化分子。并且我们知道,这些溶剂化分子又分为:完全介电饱和的最靠近离子的第一层,叫原溶剂化(primary solvation)或化学溶剂化。这层的溶剂化分子数不受温度变化的影响;第一层以外的溶剂化分子叫二级溶剂化(secondary solvation)或物理溶剂化,这一层的溶剂化分子数随着温度的变化而变化,不是固定的。
Introduction As we all know, salt dissolved in the liquid, inevitably accompanied by solvation process. That solvent molecules through their interaction with the salt ions, gathered around the ion. The solvent molecules that gather around the ion are called solvation molecules. And we know that these solvating molecules are subdivided into: the first layer closest to the ion that is fully dielectric saturated, called primary solvation or chemical solvation. The number of solvating molecules in this layer is unaffected by temperature changes; the solvating molecules outside the first layer are called secondary solvation or solvation, and the number of solvated molecules in this layer varies with temperature Change, not fixed.