Influence of the Mechanochemical Modification of Humic Acids on the Formation of Colloids in Solution

The colloid-chemical properties of humic acids (HAs) were studied depending on the mechanochemical modification of their structure. An increase in the amount of acidic ionogenic groups and hydrophilic fragments in the composition of modified HAs facilitated a decrease in the excess energy of surface...

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Bibliographic Details
Published in:Solid fuel chemistry 2023-10, Vol.57 (5), p.314-318
Main Authors: Yudina, N. V., Savel’eva, A. V.
Format: Article
Language:English
Subjects:
Adsorption
Chemical properties
Chemistry
Chemistry and Materials Science
Colloid chemistry
Colloids
Humic acids
Physical Chemistry
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Summary:The colloid-chemical properties of humic acids (HAs) were studied depending on the mechanochemical modification of their structure. An increase in the amount of acidic ionogenic groups and hydrophilic fragments in the composition of modified HAs facilitated a decrease in the excess energy of surface molecules. In an alkaline solution, two types of colloids characterized by a decrease in the energy of adsorption and the constant of adsorption equilibrium were formed as the concentration of HAs was increased.
ISSN:0361-5219
1934-8029
DOI:10.3103/S0361521923050075