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arXiv 1003.5199cond-mat.soft
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从盐水溶液结果解释水异常的途径

A route to explain water anomalies from results on an aqueous solution of salt

D. Corradini, M. Rovere, P. Gallo

摘要:

在本文中,我们调查的可能性,以检测假设的液-液临界点的水在过冷水溶液的盐。分子动力学计算机模拟在本体TIP 4 P水和氯化钠在TIP 4 P水中的水溶液上进行,浓度c = 0.67 mol/kg。液-液临界点在本体和溶液中都存在。它在热力学平面上的位置移动到更高的温度和更低的压力的溶液。与现有的实验数据的比较,使我们能够产生的相图的散装水和水溶液的实验中可测量的。由于从我们的模拟中获得的溶液中的液-液临界点的位置,实验测定的假设的水在盐水溶液中的液-液临界点似乎是可能的。

英文摘要:

In this paper we investigate the possibility to detect the hypothesized liquid-liquid critical point of water in supercooled aqueous solutions of salts. Molecular dynamics computer simulations are conducted on bulk TIP4P water and on an aqueous solution of sodium chloride in TIP4P water, with concentration c = 0.67 mol/kg. The liquid-liquid critical point is found both in the bulk and in the solution. Its position in the thermodynamic plane shifts to higher temperature and lower pressure for the solution. Comparison with available experimental data allowed us to produce the phase diagrams of both bulk water and the aqueous solution as measurable in experiments. Given the position of the liquid-liquid critical point in the solution as obtained from our simulations, the experimental determination of the hypothesized liquid-liquid critical point of water in aqueous solutions of salts appears possible.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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