Rising of gas bubbles in an aqueous medium in presence of surfactants |
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| Authors: | G Loglio N Degli Innocenti U Tesei R Cini and Wang Qi-Shan |
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| Institution: | (1) Dipartimento di Chimica Organica ?U. Schiff?, Laboratorio di Chimica-Fisica Tecnica, Via Gino Capponi 9, 50021 Firenze;(2) Tianjin Urban Construction College, China |
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| Abstract: | Summary Experiments based on the direct comparison of the gas-bubble rising times in a surfactant aqueous solution, in respect to
those in pure water, give support to the hypothesis that a rising path of many metres is needed to reach the saturation of
the adsorption process on bubbles (0.2÷0.3) cm in diameter. A maximum is evidenced in thet/t
0 ratiovs. surfactant concentration at the highest concentrations tested. An explanation, on a qualitative basis, of the appearance
of the observed maximum is proposed.
Work presented at the IV Congress of the CNR (National Research Council) National Group of the Atmosphere and Ocean Physics,
Rome, June 22–24, 1987. |
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| Keywords: | Physics of the ocean |
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