Aggregation and restabilization of colloidal titania by aluminum sulfate
The interaction of aluminum sulfate with three concentrations of a negatively-charged titania sol was investigated. Changes in turbidity during settling were used to determine the critical values of coagulation and stabilization. These data were used to establish the entire log aluminum sulfate-pH stability limit diagram for the sol, and its boundaries were related to the ionic species in equilibrium with aluminum hydroxide. The stability limits, except at the very lowest aluminum concentration, are very similar to those described for other sols. Aggregation was not dependent upon sol concentration whereas the critical aluminum concentration for restabilization increased with sol concentration. Data were obtained to demonstrate that titania obeys the Schulze-Hardy rule.
- Research Organization:
- Ohio State Univ., Columbus
- OSTI ID:
- 5457077
- Journal Information:
- Sep. Sci. Technol.; (United States), Vol. 21:5
- Country of Publication:
- United States
- Language:
- English
Similar Records
Aggregation and colloidal stability of fine-particle coal suspensions
Coagulation and restabilization of particulate, macromolecular and protected organic aquasols by aluminum(III). Project completion report
Related Subjects
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
TITANIUM OXIDES
AGGLOMERATION
FLOCCULATION
ALUMINIUM SULFATES
COLLOIDS
EXPERIMENTAL DATA
TURBIDITY
ALUMINIUM COMPOUNDS
CHALCOGENIDES
DATA
DISPERSIONS
INFORMATION
NUMERICAL DATA
OXIDES
OXYGEN COMPOUNDS
PRECIPITATION
SEPARATION PROCESSES
SULFATES
SULFUR COMPOUNDS
TITANIUM COMPOUNDS
TRANSITION ELEMENT COMPOUNDS
400105* - Separation Procedures