PROFILES AND AREAS OF INTERFACES IN THE DU NOÜY RING METHOD
作者:
F. Van Zeggeren,
C. De Courval,
E. D. Goddard,
期刊:
Canadian Journal of Chemistry
(NRC Available online 1959)
卷期:
Volume 37,
issue 12
页码: 1937-1945
ISSN:0008-4042
年代: 1959
DOI:10.1139/v59-284
出版商: NRC Research Press
数据来源: NRC
摘要:
Profiles and areas of interfaces subjected to interfacial tension measurements by the du Noüy ring method, were calculated with the aid of a digital computer. The computations were based on a solution of a set of two simultaneous, first order, ordinary differential equations. Area corrections amounted to from 5 to 17% of the total area calculated on the assumption of planar contact. These corrections permit more precise evaluation of the molecular area of monolayers spread at such interfaces. Two interfaces, viz. benzene–water and hexane–water, were taken as examples. Profiles of curves around the rings were also determined experimentally by means of an electrical contact micromanipulator method. Theoretically computed and measured profiles show very good agreement.
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