The effect of dodecylammonium chloride on crystal growth of calcium oxalate

The effect of dodecylammonium chloride (DDACl) on the growth of calcium oxalate crystals from high ionic strength solutions has been investigated. At DDACl concentrations below the critical micelle concentration (CMC) adsorption of dodecylammonium ion (DDA +) at the crystal surface was insufficient...

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Bibliographic Details
Published in:Journal of crystal growth 1992-06, Vol.121 (1), p.197-201
Main Authors: Škrtić, D., Filipović-Vinceković, N., Babić-Ivančić, V.
Format: Article
Language:English
Subjects:
Cross-disciplinary physics: materials science
rheology
Exact sciences and technology
Materials science
Methods of crystal growth
physics of crystal growth
Physics
Theory and models of crystal growth
physics of crystal growth, crystal morphology and orientation
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Summary:The effect of dodecylammonium chloride (DDACl) on the growth of calcium oxalate crystals from high ionic strength solutions has been investigated. At DDACl concentrations below the critical micelle concentration (CMC) adsorption of dodecylammonium ion (DDA +) at the crystal surface was insufficient to affect the crystallization. In the presence of DDACl at a concentration equal to or higher than the CMC a strong inhibition of the crystal growth is observed. It is caused by strong DDA + adsorption on some crystal faces. Furthermore, it was shown that the rate control mechanism changed from exponential rate law (in the control system and at the concentration of DDACl < CMC) to the linear rate law (at DDACl concentrations #62; CMC).
ISSN:0022-0248
1873-5002
DOI:10.1016/0022-0248(92)90187-N