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51313-02452-Study of the Solubility of Iron Carbonate in the Presence of Acetic Acid Using an EQCM

Product Number: 51313-02452-SG
ISBN: 02452 2013 CP
Author: Vanessa Fajardo
Publication Date: 2013
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$20.00
$20.00

This research aims to study the solubility of iron carbonate scale in the presence of acetic acid using an electrochemical quartz crystal microbalance (EQCM). Several sets of experiments were conducted in situ to quantitatively evaluate the solubility of an iron carbonate scale in the presence of acetic acid. The first set of experiments was designed to determine the influence of the pH and ionic strength on the iron carbonate precipitation in the absence of acetic acid. The second set of experiments was conducted with three different undissociated acetic acid concentrations (1mM 3mM and 5mM) at pH 6.0 and 80°C to study the solubility of the iron carbonate layer. The acetic acid was added into the system as a buffered solution for each test so no change in pH occurred. After each test the corrosion product film was characterized by surface analysis techniques such as SEM EDX/EDS Raman spectroscopy XPS and TEM. From both series of tests it was proven that the presence of acetic acid partially removed the iron carbonate layer by selective dissolution.

This research aims to study the solubility of iron carbonate scale in the presence of acetic acid using an electrochemical quartz crystal microbalance (EQCM). Several sets of experiments were conducted in situ to quantitatively evaluate the solubility of an iron carbonate scale in the presence of acetic acid. The first set of experiments was designed to determine the influence of the pH and ionic strength on the iron carbonate precipitation in the absence of acetic acid. The second set of experiments was conducted with three different undissociated acetic acid concentrations (1mM 3mM and 5mM) at pH 6.0 and 80°C to study the solubility of the iron carbonate layer. The acetic acid was added into the system as a buffered solution for each test so no change in pH occurred. After each test the corrosion product film was characterized by surface analysis techniques such as SEM EDX/EDS Raman spectroscopy XPS and TEM. From both series of tests it was proven that the presence of acetic acid partially removed the iron carbonate layer by selective dissolution.

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