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Science 28 August 1981:
Vol. 213. no. 4511, pp. 1018 - 1019
DOI: 10.1126/science.213.4511.1018
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Articles

Demineralization of Porous Solids

E. L. CUSSLER 1 and JOHN D. B. FEATHERSTONE 2

1 Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis 55455
2 Eastman Dental Center, University of Rochester, Rochester, New York 14627

When a porous ionic solid is placed in acid, the acid will dissolve surface material. When this dissolved material and the acid diffuse into the solid's pores, they can precipitate more solid. If the acid is buffered, the diffusing species can bring about precipitation in some regions and dissolution in others. When the porous solid contains several chemical species, the diffusion can precipitate one species and dissolve another. The results have implications for the demineralization of teeth.

Submitted on March 24, 1981


THIS ARTICLE HAS BEEN CITED BY OTHER ARTICLES:
Subsurface Demineralization in Dental Enamel and Other Permeable Solids During Acid Dissolution.
P. Anderson and J.C. Elliott (1992)
Journal of Dental Research 71, 1473-1481
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