CONSTANT CURRENT SOURCE FOR AUTOMATIC COULOMETRIC TITRATIONS

Technical Report · Sat Mar 01 04:00:00 EST 1958

OSTI ID:4223111

Palmer, A R; Pryor, A W

A simple but versatile constant current source for automatic coulometric titrations is described. The unit is suitable for use with a commercial automatic pH titrimeter and will accommodate wide variations of main voltage and load resistance. Coulometric titrations may be carried out fast'' or slow'' with a choice of four current ranges (2 to 37 ma) for titrations up to or near the end point. A slow l ma'' range is available for approaching the end point and the titration of microgram amounts of material. The automatic pH titrimeter provides for automatic change from fast to slow generation of the reagent and for stopping the titration at the selected end point. The utility of the equipment was demonstrated by the estimation of chromium with electrogenerated ferrous iron. The unit should be suitable for many other coulometric titrations. (auth)

• Research Organization: Australia. Atomic Energy Commission Research Establishment, Lucas Heights, New South Wales
• NSA Number: NSA-13-017758
• OSTI ID: 4223111
• Report Number(s): AAEC/E-24
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

ACIDITY
CHEMICAL REACTIONS
CHEMISTRY
CHROMIUM
CURRENTS
ELECTRIC POTENTIAL
ELECTRICITY
IONS
IRON
MEASURED VALUES
PRODUCTION
QUALITATIVE ANALYSIS
TRACE AMOUNTS
USES