Journal of Thermal Analysis and Calorimetry
Volume/Issue:
Volume 83: Issue 3
Heat capacity and phase behavior of {C6E4+water} solutions by DSC
Authors:
H. Piekarski University of Łódź Department of Physical Chemistry Łódź Poland 90-236 Pomorska 165 Łódź Poland 90-236 Pomorska 165

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M. Tkaczyk University of Łódź Department of Physical Chemistry Łódź Poland 90-236 Pomorska 165 Łódź Poland 90-236 Pomorska 165

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Pages:
541–547
Online Publication Date:
07 Apr 2006
Publication Date:
12 Mar 2006
Article Category:
Research Article
DOI:
https://doi.org/10.1007/s10973-005-7496-8
Keywords:
coexistence curve; DSC; heat capacity; 2-(hexyloxytriethoxy)ethanol; water
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Abstract  

The specific heat capacities of {2-(hexyloxytriethoxy)ethanol (C6E4)+water} system have been measured from 280 to 333 K within the whole composition range by DSC. Changes of specific, apparent and partial molar heat capacities of investigated aqueous solution vs. composition and temperature, considered as an effect of structural transformations were analyzed in order to draw boundary between region where amphiphile molecules occur as monomers and small aggregates and the area in which the first micelles appear. For each solution, the temperature dependences of the differential heat flow were analyzed in order to find the curve of phase coexistence, i.e. the boundary between one- and two-phase areas for the examined system.

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Cover Journal of Thermal Analysis and Calorimetry
Journal of Thermal Analysis and Calorimetry
Print ISSN:
1388-6150
Online ISSN:
1572-8943

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Journal of Thermal Analysis and Calorimetry
Language English
Size A4
Year of
Foundation		 1969
Volumes
per Year		 1
Issues
per Year		 24
Founder Akadémiai Kiadó
Founder's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
Publisher Akadémiai Kiadó
Springer Nature Switzerland AG
Publisher's
Address		 H-1117 Budapest, Hungary 1516 Budapest, PO Box 245.
CH-6330 Cham, Switzerland Gewerbestrasse 11.
Responsible
Publisher		 Chief Executive Officer, Akadémiai Kiadó
ISSN 1388-6150 (Print)
ISSN 1588-2926 (Online)

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