Thermal analysis, correlation between physical and chemical properties of humic acids

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60077344%3A_____%2F11%3A00371100" target="_blank" >RIV/60077344:_____/11:00371100 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Thermal analysis, correlation between physical and chemical properties of humic acids

Popis výsledku v původním jazyce

Selected humic acids extracted from coals mined in different localities in the Czech Republic, their oxidated derivatives, one sample from Chernozem, and a commercially available Fluka product were subjected to the analysis using differential scanning calorimetry and thermogravimetry. Experimental data showed significant differences in stabilities, affinities to water (moisture), ash content and combustion heats. Sample Fluka showed remarkably high content of ash and it was rejected from further considerations. Further, it was found the negative correlation between stability and N content. Combustion heat measured from degradation temperature up to 600 °C using DSC indicated relationship with the aromaticity degree of humic acids under study. On the contrary, no significant relationship was found between combustion heat and the C/H atomic ratio.

Název v anglickém jazyce

Thermal analysis, correlation between physical and chemical properties of humic acids

Popis výsledku anglicky

Selected humic acids extracted from coals mined in different localities in the Czech Republic, their oxidated derivatives, one sample from Chernozem, and a commercially available Fluka product were subjected to the analysis using differential scanning calorimetry and thermogravimetry. Experimental data showed significant differences in stabilities, affinities to water (moisture), ash content and combustion heats. Sample Fluka showed remarkably high content of ash and it was rejected from further considerations. Further, it was found the negative correlation between stability and N content. Combustion heat measured from degradation temperature up to 600 °C using DSC indicated relationship with the aromaticity degree of humic acids under study. On the contrary, no significant relationship was found between combustion heat and the C/H atomic ratio.

Druh

C - Kapitola v odborné knize

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2011

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název knihy nebo sborníku

Humic Acids from Raw Materials of the Czech Republic

ISBN

978-1-61668-965-0

Počet stran výsledku

13

Strana od-do

71-83

Počet stran knihy

133

Název nakladatele

Nova Science Publisher

Místo vydání

New York

Kód UT WoS kapitoly

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