Calcium carbonate crystallization in the presence of taurine |
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| Authors: | P. Malkaj E. Pierri E. Dalas |
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| Affiliation: | (1) Department of Chemistry, University of Patras, GR-26504 Patras, Greece;(2) Present address: Department of Physics, Polytechnic University of Tirana, Tirana, Albania |
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| Abstract: | The kinetics of calcite (CaCO3) crystallization on calcite seed crystals in the presence of taurine was investigated by the constant composition method. The presence of taurine (4× 10− 5− 4× 10−4M) in the supersaturated solutions lead to calcite crystals with a characteristic discontinuous planes of growth and poor habit, as compared to the hombohedral morphology of the seed crystals. The acceleration effect of taurine on the crystal growth rate was 17–96%. The apparent order of the crystal growth was found to be 2.0± 0.2 typical for a surface diffusion-controlled spiral growth processes. |
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