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Surface tension and bubble coalescence phenomena of aqueous solutions of electrolytes
YKI – Ytkemiska institutet.
1995 (English)In: Langmuir, ISSN 0743-7463, E-ISSN 1520-5827, Vol. 11, 1422-1426 p.Article in journal (Refereed)
Abstract [en]

The inhibition of bubble coalescence by electrolytes beyond a critical transition concentration has been assessed by the relationship between transition concentration and surface tension gradients of electrolytes (d(Ay)/dc) and gas solubility. The correlation between transition concentration and [d(Ay)/dc]~2 was mediocre (0.74), suggestingthatthe Gibbs-Marangoni effect cannot fully account forinhibition of bubble coalescence. Preliminary bubbling experiments on mixed electrolytes supported this conclusion. A much better correlation was found between the transition concentration and gas solubility (represented by the exponential decay coefficient of 02 solubility with increasing electrolyte concentration). Hence, the inhibition of bubble coalescence may be linked with the decreased dissolved gas concentration in the electrolyte solution.

Place, publisher, year, edition, pages
1995. Vol. 11, 1422-1426 p.
National Category
Natural Sciences
Identifiers
URN: urn:nbn:se:ri:diva-27272OAI: oai:DiVA.org:ri-27272DiVA: diva2:1054276
Note
A978Available from: 2016-12-08 Created: 2016-12-08Bibliographically approved

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