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Gross dissolution of natural rhombohedral calcite crystal in nitric acid in dynamic etching condition
Author(s) -
Mehta Bharat J.,
Sidpara G. R.
Publication year - 1988
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.2170231223
Subject(s) - nitric acid , dissolution , etching (microfabrication) , calcite , activation energy , crystal (programming language) , chemistry , mineralogy , analytical chemistry (journal) , crystal growth , molar concentration , inorganic chemistry , materials science , crystallography , organic chemistry , layer (electronics) , computer science , programming language
Gross dissolution of natural rhombohedral calcite crystal in concentrated nitric acid in dynamic etching condition is studied and interesting results are obtained. The gross dissolution is maximum at 6 molar concentration of nitric acid in dynamic etching condition which is similar to static etching condition. The activation energy and pre‐exponential factor is calculated for different concentrations (range 3.0 to 7.5 molar) of nitric acid. The values of activation energy and pre‐exponential factors increase as concentration increases in dynamic etching, and it is more than static etching. The higher values of gross dissolution, activation energy, and pre‐exponential factor in dynamic etching condition is explained.