Nucleated deliquescence of salt

被引：25

作者：

Cantrell, W ^{[1
]}

McCrory, C ^{[1
]}

Ewing, GE ^{[1
]}

机构：

[1] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA

来源：

JOURNAL OF CHEMICAL PHYSICS | 2002年 / 116卷 / 05期

关键词：

D O I：

10.1063/1.1429924

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have studied deliquescence on the (001) face of single crystals of NaCl and find that it is a nucleated phenomenon. The phase transition occurs only after the relative humidity exceeds that found over the saturated solution by at least 5%. The contrast between our observations and previous measurements using salt powders or crystallites leads us to the conclusion that deliquescence is controlled by the differences in energy required to solvate ions from the smooth (001) face and from the defect-rich surfaces of particulate samples. (C) 2002 American Institute of Physics.

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页码：2116 / 2120

页数：5

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