title: Propagating precipitation waves: experiments and modeling.
abstract: Traveling precipitation waves, including counterrotating spiral waves, are observed in the precipitation reaction of AlCl3 with NaOH [Volford, A.; et al. Langmuir 2007, 23, 961 - 964]. Experimental and computational studies are carried out to characterize the wave behavior in cross-section configurations. A modified sol-coagulation model is developed that is based on models of Liesegang band and redissolution systems. The dynamics of the propagating waves is characterized in terms of growth and redissolution of a precipitation feature that travels through a migrating band of colloidal precipitate.
authors.affiliation: C. Eugene Bennett Department of Chemistry, West Virginia University , Morgantown, West Virginia 26506-6045, United States.
authors.forename: Mark R
authors.initials: MR
authors.lastname: Tinsley
authors.forename: Darrell
authors.initials: D
authors.lastname: Collison
authors.forename: Kenneth
authors.initials: K
authors.lastname: Showalter
mesh_terms: D000077410:Aluminum Chloride; D017607:Aluminum Compounds / Q000737:chemistry; D002712:Chlorides / Q000737:chemistry; D008958:Models, Molecular; D011789:Quantum Theory; D012972:Sodium Hydroxide / Q000737:chemistry
chemical_list: D017607:Aluminum Compounds; D002712:Chlorides; D000077410:Aluminum Chloride; D012972:Sodium Hydroxide