Utilization of flow-through electrochemical coulometry in study of dissociation ability of humic acids

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F14%3APU110587" target="_blank" >RIV/00216305:26310/14:PU110587 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Utilization of flow-through electrochemical coulometry in study of dissociation ability of humic acids
Original language description
Humic acids are operationally defined as the fraction of humic substances which is not soluble under acidic conditions. This does not mean, however, that their solid particles easily dissolve in water. Experimental results suggest that the dissolving ofsolid humic acids in an aqueous environment is more complex than the conventional solubility behaviour of sparingly soluble solids. In this work, the pKa value of the dissolved humic acid fraction is calculated on the basis of results of flow-through electrochemical coulometry in combination with potentiometry. While the potentiometric pH-measurement is used for determination of dissociated functional groups of humic acids, whole amount of dissolved humic acids can be measured using the coulometry. Theaim of this work is to characterize the dissociation behaviour of selected humic samples by means of dissociation constants using these methods. It is shown that dissociation degree is influenced by content of dissolved humic acids. The o
Czech name
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Czech description
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Project
<a href="/en/project/LO1211" target="_blank" >LO1211: Materials Research Centre at FCH BUT- Sustainability and Development</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2014
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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