Study of Oxidations Using Copper(III) Reagents

A rapid enthalpimetric method for the assay of the reducing sugar content of some soft drinks

“…The reagents used were Analytical-grade quality, unless otherwise stated. The potassium periodato cuprate(III) complex was prepared following the method of Keyworth and Stone [13]. The solution was made to a known volume and standardised by titration with 0.20 M potassium hexacyano-ferrate(II).…”

The application of strongly oxidizing agents in flow injection analysis

“…Trivalent copper has been applied in titrimetric analysis in a few cases [4][5][6][7]. In general, direct titrimetric determinations are not possible because the reactions with oxidizable compounds are too slow and the end-points of the titrations cannot easily be determined.…”

Compounds of Trivalent Copper

“…[7] The standard solutions are stable if stored in polyethylene bottles [6] or in brown glass flasks, coated with paraffin wax. [7] …”

“…Dead-stop titration did not yield good results. [6] Thallium. Thallium has been titrated potentiometrically with periodato cuprate (III).…”

“…Thiosulphates can also be determined in NaHCO 3 solution by this method, but potassium ditellurato cuprate (III) is used as titrant. [6] Calcium. The gravimetric or colorimetrie determination of calcium with naphthalhydroxamate has been modified by Beck to a volumetric determination.…”