The influence of experimental design on the rate of calcite dissolution |
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| Authors: | ELennart Sjöberg David Rickard |
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| Institution: | Geologiska Institutionen, Stockholms Universitet, 106 91 Stockholm, Sweden |
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| Abstract: | A rotating disc system has been constructed to study calcite dissolution kinetics. The disc system is shown to obey the Levich theory and to satisfy the stringent chemical controls required by the calcite dissolution system at neutral to alkaline pH values. The errors involved in using a CO2-free atmosphere are shown to be insignificant. It is shown that the stirring dependence of systems which are not hydrodynamically well-defined is variable and dependent on the shape of the reaction vessel. Extrapolation of such results into natural systems involves very large uncertainties. |
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