Journal ArticleDOI
The control of foaming. I. The mode of action of chemical anti‐foams
TLDR
In this article, a large number of substances were tested for ability to destroy the foam on four(different foaming aqueous solutions) and the ability or inability of the anti-foams to spread on the foaming liquid was also studied.Abstract:
A large number of substances were tested for ability to destroy the foam on four(different foaming aqueous solutions. The ability or inability of the anti-foams to spread on the foaming liquid was also studied.
It is concluded that anti-foams act by displacing from the surface the substance causing the foaming (or, in salt solutions, preventing negative adsorption). They may do this either by dissolving in the foam liquid or bespreading over its surface.) The causes of the strong, correlation (found) between foam-killing and spreading are discussed.read more
Citations
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Journal ArticleDOI
Silicone Antifoam Performance: Correlation with Spreading and Surfactant Monolayer Packing
TL;DR: The relationship between the spreading of antifoam oils and their performance is much discussed in the literature, but a demonstrated connection between anti-foam spreading and performance has been lacking.
Journal ArticleDOI
Mechanism of antifoaming action
TL;DR: In this article, the authors have shown that antifoam effectiveness can be strongly influenced by dispersibility and long-range interfacial electrical forces, and that electrical repulsive forces change significantly near the critical micelle concentrations of the foaming surfactants.
Journal ArticleDOI
Foaming in submerged citric acid fermentation on beet molasses
M. Berovič,A. Cimerman +1 more
TL;DR: In this article, chemical anti-foam agents (AFA) are surface active substances, which decrease the surface elasticity of liquids and prevent metastable foam formation, which is an important part of every fermentation technology.
Journal ArticleDOI
The mechanisms of antifoam action
TL;DR: The most important factors governing the instability of the asymmetric film are the low degree of adsorption of the foam-forming agent on the interface between the films and the drops of the antifoam and the solid particles as discussed by the authors.
Journal ArticleDOI
The Effect of Oil Solubility on the Oil Drop Entry at Water−Air Interface†
TL;DR: In this article, the authors considered an asymmetric liquid film with an oil−water-air interface and showed that if a local decrease in the film thickness appears, the water−air interface enters a zone enriched in dissolved oil, which creates a surface tension gradient, which carries water away and causes a further decrease of the local film thickness in the concave zone, until eventually the film ruptures.
References
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Journal ArticleDOI
A method of selecting foam inhibitors
J. V. Robinson,W. W. Woods +1 more
TL;DR: In this article, a criterion for selecting foam inhibitors from insoluble liquids which form emulsions with the liquid to be defoamed is described, and a mechanism of defoaming is described.
Journal ArticleDOI
The behaviour of liquid drops and adsorbed films at cleavage surfaces of mica
D. H. Bangham,Z. Saweris +1 more
Book
Thorpe's dictionary of applied chemistry
TL;DR: The current edition of Thorpe's Dictionary of Applied Chemistry was published under the editorship of Sir Jocelyn Thorpe and Dr. Martha A. Whiteley as discussed by the authors, and the association with the Imperial College was maintained.
Journal ArticleDOI
Inhibition of Foaming in Solvents Containing Known Foamers
Sydney Ross,James W. McBain +1 more