Crystallization of sodium sulfate on hydrophilic/hydrophobic surfaces during drying: An NMR study

被引：9
|
作者：
Saidov, Tamerlan A. [1 ]
Shahidzadeh, Noushine [2 ]
Pel, Leo [1 ]
机构：
[1] Eindhoven Univ Technol, Dept Appl Phys, NL-5600 MB Eindhoven, Netherlands
[2] Univ Amsterdam, Van der Waals Zeeman Inst IOP, NL-1098 XH Amsterdam, Netherlands
来源：
EPL | 2013年 / 102卷 / 02期
关键词：
FLOW; EVAPORATION;
D O I：
10.1209/0295-5075/102/28003
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Sodium sulfate is recognized as a salt with probably the most damaging capabilities when crystallizing in porous media. The three main crystalline phases which can be formed are thenardite (Na2SO4, anhydrous salt), decahydrate (Na2SO4 center dot 10H(2)O) and the thermodynamically metastable heptahydrate (Na2SO4 center dot 7H(2)O). In this study, using a setup in which nuclear magnetic resonance was combined with a digital microscope, we have investigated crystallization by the drying of sodium sulfate droplets on hydrophilic/hydrophobic surfaces in order to see, which crystalline phase is formed. Copyright (C) EPLA, 2013
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页数：6
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