Title | Surface Tension of Seawater |
Publication Type | Journal Article |
Year of Publication | 2014 |
Authors | Nayar K.G, Panchanathan D., McKinley G.H, Lienhard J.H |
Journal | Journal of Physical and Chemical Reference Data |
Volume | 43 |
Issue | 4 |
Start Page | 043103 |
Abstract | New measurements and a reference correlation for the surface tension of seawater at atmospheric pressure are presented in this paper. Surface tension of seawater was measured across a salinity range of 20 ⩽ S ⩽ 131 g/kg and a temperature range of 1 ⩽ t ⩽ 92 °C at atmospheric pressure using the Wilhelmy plate method. The uncertainty within measurements varied from 0.18 to 0.37 mN/m with the average uncertainty being 0.22 mN/m. The experimental procedures were validated with tests conducted on ACS reagent grade water and aqueous sodium chloride solutions. Literature data and present measurements were evaluated and a reference correlation was developed expressing surface tension of seawater as a function of temperature and salinity. The average absolute percentage deviation between measurements and the correlation was 0.19% while the maximum deviation was 0.60%. |
DOI | 10.1063/1.4899037 |