Abstract
The dissolution rate of amorphous silica is enhanced by sulfate ions. The zeta potential for silica particles in Na 2SO 4 solution was lower than that in NaCl solution with the same ionic strength. These facts indicate that the specific adsorption of sulfate ions occurred by overcoming repulsion between negative charges of the SO 2− 4 ion and Si O − on the surface of silica. The dissolution rate of amorphous silica may be accelerated by the specific adsorption of SO 2− 4 ions because of a decrease in the strength of the Si O Si bond in amorphous silica due to donation of electron density from the adsorbed SO 2− 4 ions.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
