Title: Studies on Foams. III. The Foam Formation of Some Dyestuff Solutions
Abstract: The foam formations of the aqueous solutions of methyl violet 5B, brilliant green, malachite green, crystel violet, Hofmann’s violet and congo red have been measured. The foaming ability, that is the product of foaminess and foam strength, is considered as the measure of the foam formation. This scarcely changes by the long period’s storage of the solution. The foaming ability of them is nearly parallel with the surface activity. This is interpreted with structural formnlae of dyestuffs.