Calcium carbonate crystallization in the presence of taurine

Autor: Evangelos Dalas, P. Malkaj, E. Pierri
Rok vydání: 2006
Předmět:
Zdroj: Journal of Materials Science: Materials in Medicine. 17:403-406
ISSN: 1573-4838
0957-4530
DOI: 10.1007/s10856-006-8466-9
Popis: The kinetics of calcite (CaCO(3)) crystallization on calcite seed crystals in the presence of taurine was investigated by the constant composition method. The presence of taurine (4 x 10(- 5)- 4 x 10(-4)M) 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.
Databáze: OpenAIRE