Does an aromatic chloride substitute position influence the aggregation properties of direct dyes?

Muntean Simona Gabriela and Grad Maria and Simu Georgeta-Maria: Does an aromatic chloride substitute position influence the aggregation properties of direct dyes?

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Abstract

Dyes ions have a tendency to self-associate in aqueous solutions. The main factors influencing aggregation are dye concentration, electrolyte concentration, and temperature. In the present work, the influence of the chloride position in the dye structure on the dye aggregation was investigated. The molecular aggregation has been studied spectrophotometrically in aqueous solutions as a function of dye concentration (10'6 -s- 10"3 mol/L). As the concentration increases, different changes were observed in the dyes UV-vis spectra indicating that the molecules are beginning to aggregate. The shapes of the obtained spectra were totally different as the position of the chloride was changed in the dye molecule.

Item Type:	Conference or Workshop Item
Journal or Publication Title:	Proceedings of the International Symposium on Analytical and Environmental Problems
Date:	2012
Volume:	17
ISBN:	978-963-315-066-5
Page Range:	pp. 307-310
Language:	English
Publisher:	SZAB
Place of Publication:	Szeged
Event Title:	International Symposium on Analytical and Environmental Problems (17.) (2011) (Szeged)
Event Type:	Conference
Event Location:	Szeged
Event Dates:	2011. szeptember 19.
Related URLs:	http://acta.bibl.u-szeged.hu/76381/
Uncontrolled Keywords:	Kémia
Additional Information:	Bibliogr.: 310. p. ; ill. ; összefoglalás angol nyelven
Subjects:	01. Natural sciences 01. Natural sciences > 01.04. Chemical sciences
Date Deposited:	2022. Aug. 10. 12:37
Last Modified:	2022. Aug. 22. 10:23
URI:	http://acta.bibl.u-szeged.hu/id/eprint/76450

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