NDLI: Amperometric titration of metal ions with edta using an oxide electrode as indicator. the lead (4) oxide electrode, manganese (4) oxide electrode and bismuth (5) oxide electrode

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Amperometric titration of metal ions with edta using an oxide electrode as indicator. the lead (4) oxide electrode, manganese (4) oxide electrode and bismuth (5) oxide electrode

Content Provider	NASA Technical Reports Server (NTRS)
Author	Sontag, G. Kainz, G. Mueller, H. A.
Organization	The National Aeronautics and Space Administration (NASA)
Copyright Year	1975
Abstract	AN APPARATUS WAS DEVELOPED WHICH INDICATES THE ENDPOINT OF CHELATOMETRIC TITRATIONS AMPEROMETRICALLY. THE MOST IMPORTANT PART OF THIS APPARATUS IS A PLATINUM ANODE WHICH IS COATED WITH A THIN FILM OF METAL OXIDE. THE CATHODE IS BRIGHT PLATINUM. A VOLTAGE (BETWEEN 1.0 AND 1.2) IS APPLIED TO THE ELECTRODES. IF AN EXCESS OF EDTA APPEARS AFTER THE EQUIVALENCE, THE CURRENT BETWEEN THE ELECTRODES RISES ABRUPTLY. THE FOLLOWING METAL OXIDES ARE SUITABLE: PBO2, MNO2, BI2O5 AND PTO(X). THE CONDITIONS FOR APPLICATION OF THESE OXIDE ANODES WERE INVESTIGATED. THE CURRENT CAUSED BY AN EXCESS OF EDTA DEPENDS ON THE PH OF THE SOLUTION. THE ELECTRODES CAN BE EMPLOYED BETWEEN PH 1 AND 3, AND ARE SUITABLE FOR TITRATION OF TRIVALENT AND TETRAVALENT METAL IONS.
File Size	318017
File Format	PDF
Alternate Webpage(s)	http://www.archive.org/details/nasa_techdoc_19750012424
Archival Resource Key	ark:/13960/t2v41fs4g
Language	English
Publisher Date	1975-04-01
Access Restriction	Open
Subject Keyword	Economic Development U.s.s.r. International Cooperation International Relations Politics United States Nuclear Energy Oceanography Science Space Programs Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text

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