Citation
F. Manoli et E. Dalas, Calcium carbonate crystallization in the presence of glutamic acid, J CRYST GR, 222(1-2), 2001, pp. 293-297
Citations number
31
Categorie Soggetti
Physical Chemistry/Chemical Physics
Journal title
JOURNAL OF CRYSTAL GROWTH
ISSN journal
00220248
→ ACNP
Volume
222
Issue
1-2
Year of publication
2001
Pages
293 - 297
Database
ISI
SICI code
0022-0248(200101)222:1-2<293:CCCITP>2.0.ZU;2-G
Abstract
The kinetics of vaterite (CaCO3) crystallization on calcite in the presence
of glutamic acid was investigated by the constant composition method. The
presence of glutamic acid in the supersaturated solution stabilizes this ca
lcium carbonate polymorph. The number of ions forming the critical nucleus
was found to be four and a surface energy of 12 mJ m(-2) was estimated. The
apparent growth order was found to be 1.2 +/- 0.2 typical for a surface di
ffusion-controlled spiral growth process. (C) 2001 Elsevier Science B.V. Al
l rights reserved.