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Related Experiment Video

Updated: Jun 28, 2026

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Novel Techniques for Observing Structural Dynamics of Photoresponsive Liquid Crystals

Published on: May 29, 2018

Variation of crystal dissolution rate based on a dissolution stepwave model.

A C Lasaga¹, A Luttge

¹Department of Geology and Geophysics, Yale University, New Haven, CT 06520, USA.

Science (New York, N.Y.)

|March 27, 2001

Summary

This summary is machine-generated.

Defect-generated dissolution stepwaves explain crystal dissolution rates far from equilibrium. This new framework extends to near-equilibrium conditions, revealing a nonlinear rate decrease as equilibrium is approached.

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Area of Science:

Geochemistry
Materials Science
Chemical Engineering

Background:

Understanding crystal dissolution is crucial for geochemical and industrial processes.
Existing models often struggle to accurately predict dissolution rates under varying conditions, especially far from equilibrium.

Purpose of the Study:

To validate a new formulation for crystal dissolution rates based on defect-generated stepwaves.
To provide a conceptual framework for mineral dissolution across a range of conditions, from far-from-equilibrium to near-equilibrium.

Main Methods:

Near-atomic-scale surface observations.
Monte Carlo simulations.
Experimental determination of bulk dissolution rates.

Main Results:

Validated a formulation for dissolution rates linked to defect-generated stepwaves.
Demonstrated that these stepwaves differ from spiral growth mechanisms.
Established a framework explaining bulk dissolution rates, particularly far from equilibrium.

Conclusions:

The defect-generated dissolution stepwave model accurately predicts crystal dissolution rates.
The model extends to near-equilibrium conditions, predicting a nonlinear decrease in dissolution rate.
Findings have implications for both natural and artificial solid-fluid reaction processes.