Reference : Concentration and temperature dependence of the refractive index of ethanol-water mix...

	Document type :	Scientific journals : Article
	Discipline(s) :	Physical, chemical, mathematical & earth Sciences : Physics
	To cite this reference:	http://hdl.handle.net/10993/12334

Title :	Concentration and temperature dependence of the refractive index of ethanol-water mixtures: Influence of intermolecular interactions.
Language :	English
Author, co-author :	Jiménez Riobóo, R. [Instituto de Ciencia de Materiales de Madrid (C.S.I.C.), Campus de Cantoblanco, E-28049-Madrid, Spain]
	Philipp, Martine [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
	Ramos, M. [Laboratorio de Bajas Temperaturas, Departamento de Física de la Materia Condesada, C-III, Universidad Aut´onoma]
	Krüger, Jan-Kristian [University of Luxembourg > Faculty of Science, Technology and Communication (FSTC) > Physics and Materials Science Research Unit >]
Publication date :	2009
Journal title :	European Physical Journal E -- Soft Matter
Publisher :	Springer Science & Business Media B.V.
Volume :	30
Issue/season :	1
Pages :	19-26
Peer reviewed :	Yes (verified by ORBilu)
Audience :	International
ISSN :	1292-8941
e-ISSN :	1292-895X
City :	New York
Country :	NY
Abstract :	[en] The temperature and concentration dependence of the refractive index, n D(x, T) , in ethanol-water mixtures agrees with previous data in the ethanol-rich concentration range. The refractive index versus concentration x determined at 20 ° C shows the expected maximum at about 41 mol% water (22 mass% water). The temperature derivative of the refractive index, dn D /dT, shows anomalies at lower water concentrations at about 10 mol% water but no anomaly at 41 mol% water. Both anomalies are related to intermolecular interactions, the one in nD seems to be due to molecular segregation and cluster formation while the origin of the second one in dn D /dT is still not clear.
Permalink :	http://hdl.handle.net/10993/12334
DOI :	10.1140/epje/i2009-10496-4

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