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Theories of precipitation induced by dissolution
Author(s) -
Kopinsky Joel,
Aris Rutherford,
Cussler E. L.
Publication year - 1988
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.690341209
Subject(s) - dissolution , precipitation , solubility , diffusion , solubility equilibrium , chemical engineering , solid solution , kinetics , porosity , chemistry , mineralogy , materials science , thermodynamics , metallurgy , organic chemistry , physics , meteorology , quantum mechanics , engineering
When a porous solid is placed in acid, the solid dissolves at its surface. However, the same solid can precipitate or dissolve in pores inside the solid. The internal precipitation is a consequence of a nonlinear solubility product amplified by fast chemical kinetics. The internal dissolution can be enhanced by unequal diffusion coefficients. Both precipitation and dissolution can occur simultaneously but in different regions, mimicking the patterns of mineral found in teeth.