Radiokinetic study on the nucleation of some crystals containing Fe-55+59(3+) ions in agar and gelatine

Authors
Cecal, A Palamaru, M Chisca, S Iordan, A
Citation
A. Cecal et al., Radiokinetic study on the nucleation of some crystals containing Fe-55+59(3+) ions in agar and gelatine, J RAD NUCL, 238(1-2), 1998, pp. 203-206
Citations number
15
Categorie Soggetti
Inorganic & Nuclear Chemistry
Journal title
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY
ISSN journal
02365731 → ACNP
Volume
238
Issue
1-2
Year of publication
1998
Pages
203 - 206
Database
ISI
SICI code
0236-5731(199812)238:1-2<203:RSOTNO>2.0.ZU;2-W
Abstract
The paper presents a radiokinetic study on the appearance and growth of *Fe 2S3 *Fe(OH)(3), *Fe-2(C2O4)(3), *Fe(IO3)(3) crystals in a colloidal medium of agar and gelatine. The values of the diffusion constants through gels of Fe-55+59(3+) radioactive cations and of the rate of global growth process of these crystals in agar or gelatine were calculated using the experimenta l data. A new method for the determination of the starting time for the com plex nucleation process was proposed. The formation rate of crystals under study decreases in the order: *Fe(OH)(3)>*Fe(IO3)(3)>*Fe2S3>*Fe-2(C2O4)(3), in agar medium and *Fe(OH)(3)>*Fe(IO3)(3)>*FeC2O4)(3)>*FeS3, in gelatine m edium.