Adsorption of hexane and cyclohexane vapours at the water drop surface
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MPI Colloids and Interfaces
Institute of Colloid Chemistry and Chemistry of Water, Kyiv (Kiev), Ukraine
Institute of Biocolloid Chemistry, Kyiv (Kiev), Ukraine
SINTERFACE Technologies, Berlin, Germany
Publication date: 2017-07-10
Corresponding author
Reinhard Miller   

MPI Colloids and Interfaces, Am Mühlenberg 1, 14424 Potsdam, Germany
Physicochem. Probl. Miner. Process. 2018;54(1):54-62
The dependence of the dynamic surface tension of water at the interface with saturated hexane and cyclohexane vapours was measured by the drop profile analysis method. The surface tension for the adsorption layers of cyclohexane at different temperatures was compared with the results reported earlier for the adsorption of hexane and other alkanes from the vapour phase on water drops. It is shown that cyclohexane is adsorbed significantly slower than the adsorption of hexane occurs, and is characterised by a much larger induction time. The errors in the drop radius measurements at 40 ºC attains 0.045 mm. The experimental rheologic characteristics of the adsorbed layers are studied and the results are compared with the model developed to describe an adsorption process governed by a kinetic mechanism
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