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EFFECT OF TEMPERATURE ON DISSOLUTION ENTHALPY FOR HUMIC ACIDS IN WATER

1 TÜRKEOVÁ Irena
Co-authors:
1 ENEV Vojtěch 1 KALINA Michal 2 DAMBORSKÁ Dominika 1 KROUSKÁ Jitka 1 KLUČÁKOVÁ Martina
Institutions:
1 Materials Research Centre, Brno University of Technology, Faculty of Chemistry, Brno, Czech Republic, EU, e-mail: xcturkeovai@fch.vut.cz
2 Institute of Chemistry, Slovak Academy of Sciences, Bratislava, Slovakia, EU
Conference:
8th International Conference on Nanomaterials - Research & Application, Hotel Voronez I, Brno, Czech Republic, EU, October 19th - 21st 2016
Proceedings:
Proceedings 8th International Conference on Nanomaterials - Research & Application
Pages:
236-239
ISBN:
978-80-87294-71-0
ISSN:
2694-930X
Published:
17th March 2017
Proceedings of the conference were published in Web of Science and Scopus.
Metrics:
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Abstract

The aim of this work was to study dissolution and solubility of humic acids in water. Systems were studied using solution calorimetry. Thermodynamics data of humic acids were determined in aqueous solutions in the temperature range from 298.15 K to 318.15 K. We compared two types of humic acids and influence of temperature. These HAs were isolated from two different organic origin – compost and South Moravian lignite. HAs was isolated from South-Moravian lignite from the mine Mír (locality Mikulčice, Czech Republic) and compost which was obtained from the composting plant in Náměšť n. Oslavou, Czech Republic. Isolation of HAs was performed according to the procedure recommended by the International Humic Substances Society (IHSS).

Keywords: humic acid; dissolution; enthalpy; solution calorimetry

© This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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