The use of graphite electrodes in potentiometric titrations

Conference · Wed Apr 01 00:00:00 EST 1987

OSTI ID:6804169

Selig, W S

The use of various types of graphite as indicator electrodes in potentiometry has been limited to acid-base and redox titrations. We have expanded the range of feasible titrations to: (1) precipitation titrations; (2) acid-base titrations; (3) compleximetric titrations; and (4) redox titrations. Graphite covered with an organic membrane containing poly(vinyl chloride) (PVC) and a plasticizer is particularly useful in monitoring the endpoints of titrations in which insoluble ion-pairs are formed. The potentiometric titration of fluoride vs La(III) or Th(IV), or of sulfate vs Pb (II) or Ba(II), which can be monitored with a plain carbon rod, is discussed.

• Research Organization: Lawrence Livermore National Lab., CA (USA)
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 6804169
• Report Number(s): UCRL-96346; CONF-870593-1; ON: DE87009138
• Resource Relation: Conference: 4. international symposium on graphite intercalation, Jerusalem, Israel, 24 May 1987; Other Information: Portions of this document are illegible in microfiche products
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
FLUORIDES
POTENTIOMETRY
ELECTRODES
SULFATES
GRAPHITE
CARBON
ELEMENTAL MINERALS
ELEMENTS
FLUORINE COMPOUNDS
HALIDES
HALOGEN COMPOUNDS
MINERALS
NONMETALS
OXYGEN COMPOUNDS
SULFUR COMPOUNDS
TITRATION
400102* - Chemical & Spectral Procedures