  The kinetics of dissolution of an amorphous solid is studied using a simple
model of a glass that captures with reasonable accuracy the dynamic
heterogeneities associated with the relaxation of an amorphous material at low
temperatures. The intrinsic dissolution rate is shown to be proportional to the
concentration of surface particles kinetically able to exchange with the
solvent, independent of temperature or the thermal history of the glass. The
morphology of the dissolving surface is described and the possibility of using
surface etching to image dynamic heterogeneities is explored.
