Abstract

The adsorption of L(+)-ascorbic acid on mercury in aqueous solutions of 10 −2 M HClO 4 has been determined from electrocapillary and capacity measurements. The maximum adsorption occurs at a charge of +2 μC cm −2 . A Frumkin isotherm is obeyed. The standard Gibbs energy of adsorption is a quadratic function of the surface charge and the Δ G o value at zero charge is −24.9 kJ mol −1 . The most probable model for the adsorption layer is that of two capacitors in series. The orientation of the organic molecule in the interface is discussed.

Full Text
Paper version not known

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 call

Disclaimer: 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.