Abstract
The results of the etching behaviour of different faces of L-arginine phosphate monohydrate (LAP) crystals in distilled water, methanol and ethanol are described. It was found that all the three solvents produce dislocation etch pits on different faces of LAP crystals, and that the capability of revelation of etch pits by a solvent on different faces depends on their crystallographic orientation. The observations are interpreted from the standpoint of Cabrera's thermodynamic theory of dislocation etch-pit formation.
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