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Flow-driven pattern formation in the calcium-oxalate system
2016 (English)In: Journal of Chemical Physics, Vol. 144Article in journal (Refereed) Published
Abstract [en]

The precipitation reaction of calcium oxalate is studied experimentally in the presence of spatial gradients by controlled flow of calcium into oxalate solution. The density difference between the reactants leads to strong convection in the form of a gravity current that drives the spatiotemporal pattern formation. The phase diagram of the system is constructed, the evolving precipitate patterns are analyzed and quantitatively characterized by their diameters and the average height of the gravity flow. The compact structures of calcium oxalate monohydrate produced at low flow rates are replaced by the thermodynamically unstable calcium oxalate dihydrate favored in the presence of a strong gravity current.

Place, publisher, year, edition, pages
American Institute of Physics (AIP), 2016. Vol. 144
National Category
Physical Chemistry
Identifiers
URN: urn:nbn:se:kth:diva-218749DOI: 10.1063/1.4947141ISI: 000375785800037Scopus ID: 2-s2.0-84966289914OAI: oai:DiVA.org:kth-218749DiVA, id: diva2:1161482
Note

QC 20171211

Available from: 2017-11-30 Created: 2017-11-30 Last updated: 2017-12-11Bibliographically approved

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Endrődi, Balázs
Physical Chemistry

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