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Role of Acid Concentration in Leaching of Cordierite and Alkali Borosilicate Glass
Author(s) -
ELMER THOMAS H.
Publication year - 1985
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1985.tb11529.x
Subject(s) - borosilicate glass , cordierite , alkali metal , leaching (pedology) , nitric acid , penetration (warfare) , chemistry , inorganic chemistry , mineralogy , materials science , nuclear chemistry , metallurgy , catalysis , organic chemistry , geology , operations research , soil science , engineering , soil water
The leaching rates of both cordierite and heat‐treated alkali borosilicate glass were studied in hot nitric acid solutions ranging from ∼0.1 to ∼16N. Weight loss and penetration measurements of the specimens showed that the reaction rates go through a maximum with acid concentration. The data indicate that the rate of leaching, which involves ion‐exchange and hydration reactions, is controlled not only by acid strength, but also by water activity.