Water vapour pressure above saturated salt solutions at low temperatures

被引:48
作者
Morillon, V
Debeaufort, F
Jose, J
Tharrault, JF
Capelle, M
Blond, G
Voilley, A
机构
[1] Univ Bourgogne 1, Labs GPAB, F-21000 Dijon, France
[2] Univ Bourgogne 1, ENSBANA, BPCPSA, F-21000 Dijon, France
[3] IUT Genie Biol, F-21000 Dijon, France
[4] Univ Lyon 1, Lab Chim Analyt 1, F-69622 Villeurbanne, France
[5] Nestec Ltd, Ctr R&D, F-60000 Beauvais, France
关键词
experimental data; low temperature; water vapour pressure; saturated salt solution; vapour-liquid-solid equilibria;
D O I
10.1016/S0378-3812(99)00009-6
中图分类号
O414.1 [热力学];
学科分类号
摘要
The properties of water-salt systems in relation to their vapour pressure are studied especially at low temperature. The water vapour pressure of saturated salt solutions of strontium chloride, zinc chloride, nickel chloride, nickel nitrate, magnesium chloride, magnesium bromide, magnesium nitrate, calcium chloride, potassium nitrite, lithium chloride, lithium bromide, lithium iodide and sodium bromide are measured in a temperature range -40 to +10 degrees C. The apparatus used in this study, is well adapted to measure very low pressure with an uncertainty of pressure measurement of 2% for a range between 10(-3) and 10 mm Hg. The experimental values are fitted by Antoine equation with mean percent deviation lower than 1%. Comparison of these values with Literature data shows a good agreement. (C) 1999 Elsevier Science B.V. All rights reserved.
引用
收藏
页码:297 / 309
页数:13
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