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Dissolution of quartz in aqueous basic solution, 106-236 C - Surface kinetics of 'perfect' crystallographic facesA highly accurate method, called the negative crystal method, for determining the rate of dissolution on specific crystallographic faces of crystals was developed, in which the dissolution rates of nominally perfect crystal faces are obtained by measuring the size of individual negative crystals during a sequence of dissolution steps. The method was applied to determine the apparent activation energy and rate constants for the dissolution of quartz in 0.01 M KOH solutions at temperatures from 106 to 236 C. Also investigated were the effects of hydroxyl activity and ionic strength. The apparent activation energies for the dissolution of the prism and of the rhomb were determined.
Document ID
19910031941
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Gratz, Andrew J.
(California Univ. Los Angeles, CA, United States)
Bird, Peter
(California Univ. Los Angeles, CA, United States)
Quiro, Glenn B.
(California, University Los Angeles, United States)
Date Acquired
August 15, 2013
Publication Date
November 1, 1990
Publication Information
Publication: Geochimica et Cosmochimica Acta
Volume: 54
ISSN: 0016-7037
Subject Category
Inorganic And Physical Chemistry
Accession Number
91A16564
Funding Number(s)
CONTRACT_GRANT: NGT-50228
Distribution Limits
Public
Copyright
Other

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