The effect of surface-additives on bubble coalescence in aqueous media

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60461373%3A22340%2F99%3A00009006" target="_blank" >RIV/60461373:22340/99:00009006 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

The effect of surface-additives on bubble coalescence in aqueous media

Original language description

An experimental study has been aimed at examining the coalescence phenomena in aqueous solutions of aliphatic alcohols and electrolytes and at determining the efect of these surface-active compounds on bubble coalescence in viscous aqueous media with Newtonian and non-Newtonian behaviour, represented by aqueous solutions of 50 and 60 wt%, saccharose, and 0.2 and 0.5 wt%, xanthan, respectively. Bubble coalescence in aqueous solutions of alcohols and electrolytes was significantly hindered by increasing solute concentration and the coalescence percentage t exhibited sharp transition from 100% of bubble pairs coalescing to very low values over a narrow concentration range. Transition concentrations of respective surface-active additives, characterizing suppression of coalescence in their aqueous solutions, were successfully correlated as a function of the surface tension gradient, with exponent values 1/3 and 1/4 (or 1/6) for solutions of alcohols and electrolytes, respectively. The inhib

Czech name

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Czech description

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Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

CI - Industrial chemistry and chemical engineering

OECD FORD branch

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Project

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Continuities

Z - Vyzkumny zamer (s odkazem do CEZ)

Publication year

1999

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Chemical Engineering Science

ISSN

0009-2509

e-ISSN

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Volume of the periodical

54

Issue of the periodical within the volume

21

Country of publishing house

BE - BELGIUM

Number of pages

12

Pages from-to

4757-4766

UT code for WoS article

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EID of the result in the Scopus database

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