Publication result detail
Comparison of Thermal and Chemical Stability of Cu-humic Complexes
KLUČÁKOVÁ, M.; NOVÁČKOVÁ, K.
Original Title
Comparison of Thermal and Chemical Stability of Cu-humic Complexes
English Title
Comparison of Thermal and Chemical Stability of Cu-humic Complexes
Type
Paper in proceedings (conference paper)
Original Abstract
This work is focused on comparison of thermo-oxidative and chemical stability of copper complexes with humic acids.The humic acid was extracted from South-Moravian lignite by standard alkaline extraction . The humic sample was used in two different forms: as solid powder and as hydrogel prepared by acidic precipitation of humate. Three various concentrations solutions of Cu2+ solutions were used for complexation of humic powder and gel, in order to study the influence of their initial concentration on both determined stabilities of the prepared complexes. Their chemical stability of wasassessed in term of Cu2+ ions release from the humic acid structure into two different extraction agents (MgCl2 and HCl solutions). Their thermooxidative behaviour was investigated employing thermal analysis (TGA).
English abstract
This work is focused on comparison of thermo-oxidative and chemical stability of copper complexes with humic acids.The humic acid was extracted from South-Moravian lignite by standard alkaline extraction . The humic sample was used in two different forms: as solid powder and as hydrogel prepared by acidic precipitation of humate. Three various concentrations solutions of Cu2+ solutions were used for complexation of humic powder and gel, in order to study the influence of their initial concentration on both determined stabilities of the prepared complexes. Their chemical stability of wasassessed in term of Cu2+ ions release from the humic acid structure into two different extraction agents (MgCl2 and HCl solutions). Their thermooxidative behaviour was investigated employing thermal analysis (TGA).
Keywords
humic acid, copper, complexation, stability
Key words in English
humic acid, copper, complexation, stability
Authors
KLUČÁKOVÁ, M.; NOVÁČKOVÁ, K.
RIV year
2013
Released
09.09.2012
Publisher
Springer-Verlag
Location
Hangzhou
ISBN
978-94-007-5633-5
Book
Functions of Natural Organic Matter in Changing Environment
Pages from
287
Pages to
289
Pages count
3
BibTex
@inproceedings{BUT94026,
author="KLUČÁKOVÁ, M. and NOVÁČKOVÁ, K.",
title="Comparison of Thermal and Chemical Stability of Cu-humic Complexes",
booktitle="Functions of Natural Organic Matter in Changing Environment",
year="2012",
pages="287--289",
publisher="Springer-Verlag",
address="Hangzhou",
isbn="978-94-007-5633-5"
}