Transport-Mediated Control of Particles of Calcium Carbonate

Micrometer-sized particles of calcium carbonate were formed by adding NaHCO3 (aq) to a buffered aqueous solution of CaCl2 (aq) and polyelectrolytes. Particle morphology and crystal polymorphology were tuned by varying the stirring rate. Vigorous stirring led to the formation of micrometer-sized sphe...

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Bibliographic Details
Published in:Crystal growth & design 2009-11, Vol.9 (11), p.4581-4583
Main Authors: Pai, Ranjith Krishna, Jansson, Kjell, Hedin, Niklas
Format: Article
Language:English
Subjects:
Applied sciences
Chemistry
Exact sciences and technology
Fysikalisk kemi
Ionization properties
Kemi
NATURAL SCIENCES
NATURVETENSKAP
Organic polymers
Physical chemistry
Physicochemistry of polymers
Properties and characterization
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Summary:Micrometer-sized particles of calcium carbonate were formed by adding NaHCO3 (aq) to a buffered aqueous solution of CaCl2 (aq) and polyelectrolytes. Particle morphology and crystal polymorphology were tuned by varying the stirring rate. Vigorous stirring led to the formation of micrometer-sized spherical particles of nanocrystalline vaterite; slow stirring formed rhombohedral nanostructured particles of calcite.
ISSN:1528-7483
1528-7505
1528-7505
DOI:10.1021/cg900009j