Journal
JOURNAL OF CHEMICAL PHYSICS
Volume 130, Issue 9, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.3080719
Keywords
aggregation; aluminium compounds; crystal growth from solution; crystallisation; diffusion; mass transfer; potassium compounds; surface chemistry
Funding
- Chang Gung Memorial Hospital
- National Science Council of Taiwan
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The mechanism of crystal growth from solution is often thought to consist of a mass transfer diffusion step followed by a surface reaction step. Solute molecules might form clusters in the diffusion step before incorporating into the crystal lattice. A model is proposed in this work to simulate the evolution of the cluster size distribution due to the simultaneous aggregation and breakage of solute molecules in the diffusion layer around a growing crystal in the stirred solution. The crystallization of KAl(SO(4))(2)12H(2)O from aqueous solution is studied to illustrate the effect of supersaturation and diffusion layer thickness on the number-average degree of clustering and the size distribution of solute clusters in the diffusion layer.
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