ScholarLens Back to search
1992•Soil ScienceRequires access

EFFECT OF TEMPERATURE ON THE KINETICS OF FeEDDHA SORPTION ON A CALCAREOUS SOIL

Juana Dolores Jordá, Juan Sánchez‐Andréu, Margarita Juárez

Open publisher page 3 citations

Abstract

We have performed series of batch experiments at different temperatures and times to study the kinetics of FeEDDHA reaction in a calcareous soil. Several kinetic equations (zero-order, first-order, two constant, parabolic, and Elovich equations) were applied to obtain the correspondent rate constants. First-order, two-constant, parabolic, and Elovich equations described better FeEDDHA behavior. In all cases high activation energies (between 38.5 and 61.8 kJ/mol) were observed, indicating sorption to be a nondiffusional process. Calculated value of ΔH° was 58.7 kJ/mol and ΔS° was positive (171.7 J/mol × K). Our calculations indicate that the reaction of FeEDDHA is a chemically controlled sorption on the external surfaces of soil particles accompanied by simultaneous desorption of other molecules from the soil.

About this research paper

What this paper is about

We have performed series of batch experiments at different temperatures and times to study the kinetics of FeEDDHA reaction in a calcareous soil. Several kinetic equations (zero-order, first-order, two constant, parabolic, and Elovich equations) were applied to obtain the correspondent rate constants. First-order, two-constant, parabolic, and Elovich equations described better FeEDDHA behavior. In all cases high activation energies (between 38.5 and 61.8 kJ/mol) were observed, indicating sorption to be a nondiffusional process. Calculated value of ΔH° was 58.7 kJ/mol and ΔS° was positive (171.7 J/mol × K). Our calculations indicate that the reaction of FeEDDHA is a chemically controlled sorption on the external surfaces of soil particles accompanied by simultaneous desorption of other molecules from the soil.

Why it matters

OpenAlex reports 3 citations for this work. Citation counts describe recorded attention and do not establish research quality.

Key contribution

A contribution statement is not available in the OpenAlex record.

Method / approach

Method details are not available in the OpenAlex metadata.

Main findings

Findings are not separately available in the OpenAlex metadata.

Limitations

Limitations are not available in the OpenAlex metadata.

Applications

Application details are not available in the OpenAlex metadata.

Available abstract

We have performed series of batch experiments at different temperatures and times to study the kinetics of FeEDDHA reaction in a calcareous soil. Several kinetic equations (zero-order, first-order, two constant, parabolic, and Elovich equations) were applied to obtain the correspondent rate constants. First-order, two-constant, parabolic, and Elovich equations described better FeEDDHA behavior. In all cases high activation energies (between 38.5 and 61.8 kJ/mol) were observed, indicating sorption to be a nondiffusional process. Calculated value of ΔH° was 58.7 kJ/mol and ΔS° was positive (171.7 J/mol × K). Our calculations indicate that the reaction of FeEDDHA is a chemically controlled sorption on the external surfaces of soil particles accompanied by simultaneous desorption of other molecules from the soil.

Key concepts: Sorption, Calcareous, Chemistry, Desorption, Kinetics, Reaction rate constant, Kinetic energy, Analytical Chemistry (journal)

Related papers

Related paper 1Related paper 2Related paper 3
Back to paper searchBrowse research topicsOriginal source
EFFECT OF TEMPERATURE ON THE KINETICS OF FeEDDHA SORPTION ON A CALCAREOUS SOIL — Research Paper | ScholarLens