『Abstract
We present here a methodology, using holographic interferometry,
enabling to measure the pure surface reaction rate constant of
the dissolution of a mineral in water, unambiguously free from
the influence of mass transport. We use that technique to access
to this value for gypsum and we demonstrate that it was never
measured before but could be deduced a posteriori from the literature
results if hydrodynamics is taken into account with accuracy.
It is found to be much smaller than expected. This method enables
to provide reliable rate constants for the test of dissolution
models and the interpretation of in situ measurements, and gives
clues to explain the inconsistency between dissolution rates of
calcite and aragonite, for instance, in the literature.』
1. Introduction
2. Materials and methods
3. Results
4. Literature analysis
5. Discussion
Acknowledgments
References