THE KINETICS OF CALCITE DISSOLUTION PRECIPITATION
The channel-flow cell method is used to establish the dissolution/precipitation kinetics of calcite under wide ranges of bulk Ca1+ concentration (0-10 mM) and solution flow rate (10-30.3 cm3 s-1) for different bulk pH values. Detailed mathematical modeling of the heterogeneous reaction, and accompan...
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| Format: | Journal article |
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1993
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| _version_ | 1797090414198521856 |
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| author | Brown, C Compton, R Narramore, C |
| author_facet | Brown, C Compton, R Narramore, C |
| author_sort | Brown, C |
| collection | OXFORD |
| description | The channel-flow cell method is used to establish the dissolution/precipitation kinetics of calcite under wide ranges of bulk Ca1+ concentration (0-10 mM) and solution flow rate (10-30.3 cm3 s-1) for different bulk pH values. Detailed mathematical modeling of the heterogeneous reaction, and accompanying solution processes leads to the following rate equation based on a model in which Ca2+ and CO2- 3 undergo Langmuirian adsorption on the calcite surface: Dnet/mol cm-2s-1 = kbKCaKCO3 { KSP - [Ca2+]o[CO2- 3]O (1 + KCo[Ca2+]o(1 + KCO3 [CO3]o)} Here Dnet is the net flux of dissolving calcium ions, kb is a rate constant, Ksp, is the solubility product of calcite corrected for the ionic strength of the solution, KA (A = Ca2+ or CO2- 3) are Langmuirian adsorption constants, and [ ]o denotes the concentration at the Outer Helmholtz Plane. © 1993 Academic Press. All rights reserved. |
| first_indexed | 2024-03-07T03:18:15Z |
| format | Journal article |
| id | oxford-uuid:b68cc16a-b398-451d-88e4-fb46a9fe7256 |
| institution | University of Oxford |
| last_indexed | 2024-03-07T03:18:15Z |
| publishDate | 1993 |
| record_format | dspace |
| spelling | oxford-uuid:b68cc16a-b398-451d-88e4-fb46a9fe72562022-03-27T04:41:44ZTHE KINETICS OF CALCITE DISSOLUTION PRECIPITATIONJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:b68cc16a-b398-451d-88e4-fb46a9fe7256Symplectic Elements at Oxford1993Brown, CCompton, RNarramore, CThe channel-flow cell method is used to establish the dissolution/precipitation kinetics of calcite under wide ranges of bulk Ca1+ concentration (0-10 mM) and solution flow rate (10-30.3 cm3 s-1) for different bulk pH values. Detailed mathematical modeling of the heterogeneous reaction, and accompanying solution processes leads to the following rate equation based on a model in which Ca2+ and CO2- 3 undergo Langmuirian adsorption on the calcite surface: Dnet/mol cm-2s-1 = kbKCaKCO3 { KSP - [Ca2+]o[CO2- 3]O (1 + KCo[Ca2+]o(1 + KCO3 [CO3]o)} Here Dnet is the net flux of dissolving calcium ions, kb is a rate constant, Ksp, is the solubility product of calcite corrected for the ionic strength of the solution, KA (A = Ca2+ or CO2- 3) are Langmuirian adsorption constants, and [ ]o denotes the concentration at the Outer Helmholtz Plane. © 1993 Academic Press. All rights reserved. |
| spellingShingle | Brown, C Compton, R Narramore, C THE KINETICS OF CALCITE DISSOLUTION PRECIPITATION |
| title | THE KINETICS OF CALCITE DISSOLUTION PRECIPITATION |
| title_full | THE KINETICS OF CALCITE DISSOLUTION PRECIPITATION |
| title_fullStr | THE KINETICS OF CALCITE DISSOLUTION PRECIPITATION |
| title_full_unstemmed | THE KINETICS OF CALCITE DISSOLUTION PRECIPITATION |
| title_short | THE KINETICS OF CALCITE DISSOLUTION PRECIPITATION |
| title_sort | kinetics of calcite dissolution precipitation |
| work_keys_str_mv | AT brownc thekineticsofcalcitedissolutionprecipitation AT comptonr thekineticsofcalcitedissolutionprecipitation AT narramorec thekineticsofcalcitedissolutionprecipitation AT brownc kineticsofcalcitedissolutionprecipitation AT comptonr kineticsofcalcitedissolutionprecipitation AT narramorec kineticsofcalcitedissolutionprecipitation |