FAST COAGULATION OF NEARLY SPHERICAL FERRIC-OXIDE (HEMATITE) PARTICLES .1. FORMATION AND DECOMPOSITION OF AGGREGATES - EXPERIMENTAL ESTIMATION OF VELOCITY CONSTANTS

Authors
LICHTENFELD H KNAPSCHINSKY L SONNTAG H SHILOV V
Citation
H. Lichtenfeld et al., FAST COAGULATION OF NEARLY SPHERICAL FERRIC-OXIDE (HEMATITE) PARTICLES .1. FORMATION AND DECOMPOSITION OF AGGREGATES - EXPERIMENTAL ESTIMATION OF VELOCITY CONSTANTS, Colloids and surfaces. A, Physicochemical and engineering aspects, 104(2-3), 1995, pp. 313-320
Citations number
18
Categorie Soggetti
Chemistry Physical
Journal title
Colloids and surfaces. A, Physicochemical and engineering aspects → ACNP
ISSN journal
09277757
Volume
104
Issue
2-3
Year of publication
1995
Pages
313 - 320
Database
ISI
SICI code
0927-7757(1995)104:2-3<313:FCONSF>2.0.ZU;2-A
Abstract
Using a single-particle light-scattering technique, we investigated ra pid coagulation with monodisperse Fe2O3 particles (haematite). It was revealed that the value of the velocity constant of coagulation, k(11) = 11.0 x 10(-12) cm(3) s(-1), was significantly closer to predictions by Smoluchowski's theory than to theories which allow for hydrodynami c and van der Waals interactions between spherical particles.