Di Lorenzo, Fulvio; Steiner, Kay; Churakov, Sergey V. (2021). The Effect of pH, Ionic Strength and the Presence of PbII on the Formation of Calcium Carbonate from Homogenous Alkaline Solutions at Room Temperature. Minerals, 11(7), p. 783. MDPI 10.3390/min11070783
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Precipitation of calcium carbonates in aqueous systems is an important factor controlling
various industrial, biological, and geological processes. In the first part of this study, the wellknown
titration approach introduced by Gebauer and coworkers in 2008 s used to obtain reliable
experimental dataset for the deep understanding of CaCO3 nucleation kinetics in supersaturated
solutions over a broad range of pH and ionic strength conditions. In the second part, the effect of
impurities, i.e., 1 mol% of Pb2+, was assessed in the same range of experimental conditions. Divalent
lead has been shown to have an inhibitory effect in all ranges of the conditions tested except for
pH 8 and low ionic strength (≤0.15 mol/L). Future investigations might take advantage of the
methodology and the data provided in this work to investigate the effect of other system variables.
The investigation of all the major variables and the assessment of eventual synergic effects could
improve our ability to predict the formation of CaCO3 in complex natural systems.
Item Type: |
Journal Article (Original Article) |
|---|---|
Division/Institute: |
08 Faculty of Science > Institute of Geological Sciences > Mineralogy 08 Faculty of Science > Institute of Geological Sciences |
UniBE Contributor: |
Di Lorenzo, Fulvio, Churakov, Sergey |
Subjects: |
500 Science > 550 Earth sciences & geology |
ISSN: |
2075-163X |
Publisher: |
MDPI |
Language: |
English |
Submitter: |
Fulvio Di Lorenzo |
Date Deposited: |
02 Aug 2021 11:50 |
Last Modified: |
31 Mar 2023 10:40 |
Publisher DOI: |
10.3390/min11070783 |
BORIS DOI: |
10.48350/157697 |
URI: |
https://boris.unibe.ch/id/eprint/157697 |
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