NDLI: CHARGE DEVELOPMENT AND ACID-BASE CHARACTERISTICS OF SOIL AND COMPOST HUMIC ACIDS

Content Provider	Scientific Electronic Library Online (SciELO)
Author	CAMPITELLI, P. A. VELASCO, M. I. CEPPI, S.B.
Abstract	In previous works, the acid-base properties, charging behavior and chemical heterogeneity of humic substances have been studied using different mathematical equations to fit the experimental data. The objective of this research is to study the charge behavior, acid-base properties and analyze the chemical heterogeneity of humic acids (HA) extracted from soil and composted municipal solid waste by potentiometric titrations. The humic acids extracted from compost have some characteristics and behavior similar to those obtained from soil. The negative charge development of HA extracted from composted material are lower than those extracted from soil and increase as ionic strength increase. The amount of carboxylic groups is lower in compost HA than in soil HA The heterogeneity of HA extracted from compost is higher than those extracted from soil. As the time of composting period increase the humification processes that take place trends to produce compost HA that has similar characteristics to soil HA. We suggest that HA extracted from composted material are macromolecules "like soil humic acids", i.e. "humiclike fraction"
Related Links	https://scielo.conicyt.cl/scielo.php?script=sci_abstract&pid=S0717-97072003000300018&lng=en&nrm=iso https://scielo.conicyt.cl/scielo.php?script=sci_arttext&pid=S0717-97072003000300018&lng=en&nrm=iso
Starting Page	91
Ending Page	96
Page Count	6
File Format	PDF
ISSN	07179707
DOI	10.4067/S0717-97072003000300018
Journal	Journal of the Chilean Chemical Society
Issue Number	3
Volume Number	48
Language	English
Publisher	Sociedad Chilena de Química
Publisher Date	2003-09-01
Access Restriction	Open
Subject Keyword	Compost Humic acids Charge development Acid-base characteristics
Content Type	Text
Resource Type	Article
Subject	Chemistry

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CHARACTERIZATION OF HUMIC ACIDS ORIGINATED FROM ARGENTINEAN COMPOST AND SOIL BY CAPILLARY ELECTROPHORESIS AND MASS SPECTROMETRY

Replenishing Humic Acids in Agricultural Soils

Phenanthrene sorption by compost humic acids

The effects of soil sand contents on characteristics of humic acids along soil profiles

Characteristics and distributions of humic acids in two soil profiles of the southwest China Karst area

Comparative evaluation of compost humic acids and their effects on the germination of switchgrass (Panicum vigatum L.)

DEVELOPMENT AND EVALUATION OF HUMIC ACID AND FULVIC ACID FORMULATIONS

Dependence on molecular weight of acid-base properties of humic and fulvic acids

Composition, particle size, charge, and colloidal stability of pH-fractionated humic acids

CHARGE DEVELOPMENT AND ACID-BASE CHARACTERISTICS OF SOIL AND COMPOST HUMIC ACIDS

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CHARGE DEVELOPMENT AND ACID-BASE CHARACTERISTICS OF SOIL AND COMPOST HUMIC ACIDS