Premium
Effect of Impurities on the Etching of Sodium Chloride Crystals
Author(s) -
Koziejowska A.,
Sangwal K.
Publication year - 1986
Publication title -
crystal research and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.377
H-Index - 64
eISSN - 1521-4079
pISSN - 0232-1300
DOI - 10.1002/crat.2170210516
Subject(s) - impurity , dissolution , methanol , chemistry , solvent , etching (microfabrication) , ethanol , dislocation , kinetics , inorganic chemistry , sodium , crystallography , organic chemistry , layer (electronics) , quantum mechanics , physics
The results of a study of the effect of HgCl 2 , ZnCl 2 , PbCl 2 and CaCl 2 on the surface micro‐morphology and kinetics of etching of {100} planes of NaCl crystals in methanol and ethanol are described and discussed. It was found that addition of an impurity to the solvent leads to the formation of contrasting dislocation etch pits, and that the overall dissolution rate in a solvent decreases with an increase in additive concentration. In the case of HgCl 2 impurity added to methanol terraced etch pits are observed, but their terracing behaviour diminishes with the increasing impurity concentration.