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Changes of capillary forces in abnormal solubility

J. Tamchyna

Slovak Academy of Sciences, Bratislava

 

Abstract: Changes in the interfacial tension of hydrotropic solns. of amyl alc., benzyl alc., and aniline in aq. solns. of Li, Na, K, triethanolamine, diethanolamine, and monoethanolamine salts of BzOH and salicylic acid were studied. The interfacial tension decreases in relation to concn. of sol. salts. The hydration of cations in the hydrotropic binary systems amyl alc.-salts of BzOH or salicylic acid cause a more rapid decrease of the interfacial tension than in the binary system aniline-salts of salicylic acid, which behaves just opposite. The occurrence of the relative decrease in the interfacial tension can be expressed by a simple equation y = abx where x is molar concn., y is the relative change of the interfacial tension, and a and b are consts. The opinion is expressed that the reason for the development of the abnormal soly. is the presence of solvatable compds. of hydrotropically active salts in concd. solns.

Full paper in Portable Document Format: 109a553.pdf (in Slovak)

 

Chemical Papers 10 (9) 553–560 (1956)

Tuesday, May 21, 2024

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