guest ::
| Home > Conference materials > Papers > Surface tension of aqueous binary mixtures under the supercooled conditions – Development of the measuring technique and preliminary data for water + lower alcohols |
Original title:
Surface tension of aqueous binary mixtures under the supercooled conditions – Development of the measuring technique and preliminary data for water + lower alcohols
Authors: Vinš, Václav ; Hykl, Jiří ; Nikl, Zbyněk ; Čenský, Miroslav ; Hrubý, Jan
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2017, Mikulov (CZ), 20171121
Year: 2017
Language: eng
Abstract: An experimental apparatus originally developed for the measurement of surface tension of supercooled water was modified such that it allows for measurement of binary aqueous mixtures. The measuring principle based on the capillary rise technique is similar to that employed in the previous measurements with pure water [J. Hrubý et al., J. Phys. Chem. Lett. 5 (2014) 425 and V. Vinš et al., J. Phys. Chem. B 119 (2015) 5567]. The temperature dependence of the surface tension is determined from the\nmeasured height of the liquid column elevated in a vertical capillary tube with an inner diameter of 0.32 mm. The aqueous liquid rises to a height of 60 mm to 95 mm depending on the solute concentration and the temperature. Preliminary tests performed with the binary mixtures of water with methanol, ethanol, and n-propanol at various concentrations and temperatures down to –28 °C approved functionality of the measuring technique. Some difficulties, such as influence of impurities on the liquid column elevation or formation of bubbles in the liquid column, were observed. The experimental apparatus is further being modified in order to obtain more accurate data for various aqueous mixtures.
Keywords: aqueous mixture; supercooled liquid; surface tension
Project no.: GJ15-07129Y (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of the International conference Experimental Fluid Mechanics 2017
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0279373
Permalink: http://www.nusl.cz/ntk/nusl-371048
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Authors: Vinš, Václav ; Hykl, Jiří ; Nikl, Zbyněk ; Čenský, Miroslav ; Hrubý, Jan
Document type: Papers
Conference/Event: Experimental Fluid Mechanics 2017, Mikulov (CZ), 20171121
Year: 2017
Language: eng
Abstract: An experimental apparatus originally developed for the measurement of surface tension of supercooled water was modified such that it allows for measurement of binary aqueous mixtures. The measuring principle based on the capillary rise technique is similar to that employed in the previous measurements with pure water [J. Hrubý et al., J. Phys. Chem. Lett. 5 (2014) 425 and V. Vinš et al., J. Phys. Chem. B 119 (2015) 5567]. The temperature dependence of the surface tension is determined from the\nmeasured height of the liquid column elevated in a vertical capillary tube with an inner diameter of 0.32 mm. The aqueous liquid rises to a height of 60 mm to 95 mm depending on the solute concentration and the temperature. Preliminary tests performed with the binary mixtures of water with methanol, ethanol, and n-propanol at various concentrations and temperatures down to –28 °C approved functionality of the measuring technique. Some difficulties, such as influence of impurities on the liquid column elevation or formation of bubbles in the liquid column, were observed. The experimental apparatus is further being modified in order to obtain more accurate data for various aqueous mixtures.
Keywords: aqueous mixture; supercooled liquid; surface tension
Project no.: GJ15-07129Y (CEP)
Funding provider: GA ČR
Host item entry: Proceedings of the International conference Experimental Fluid Mechanics 2017
Institution: Institute of Thermomechanics AS ČR (web)
Document availability information: Fulltext is available at the institute of the Academy of Sciences.
Original record: http://hdl.handle.net/11104/0279373
Permalink: http://www.nusl.cz/ntk/nusl-371048
The record appears in these collections:
Research > Institutes ASCR > Institute of Thermomechanics
Conference materials > Papers
Record created 2018-01-11, last modified 2021-11-24