Abstract
Silver, nickel, copper, iron and tungsten were successfully applied as indicator electrodes in the titration of the acid K 2Cr 2O 7 in molten KNO 3 at 350°. With all electrodes sharp potential drops were recorded at the theoretically calculated equivalence points. Because of differences in E° potentials (as oxygen electrodes), the measurement of potential differences between any two indicator electrodes allowed the determination, of equivalence points. In this type of titration no reference electrode is needed. Bimetallic combinations were equally suitable for the determination of equivalence points of acids neutralizing in more than one step, e.g., NaPO 3 and NaH 2PO 4.
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.
