title: Iodometric determination of peroxydiphosphate in the presence of copper(II) or iron(II) as catalyst.
abstract: Peroxydiphosphate can be determined iodometrically in the presence of a large excess of potassium iodide with copper(II) or iron(II) as catalyst through the operation of the Cu(II)/Cu(I) or Fe(II)/Fe(III) cycle. The method is applicable in HClO(4), H(2)SO(4), HCl and CH(3)COOH acid media in the range 0.1-1.0M studied. Nickel, manganese(II), cobalt(II), silver, chloride and phosphate are without effect.
authors.affiliation: Department of Chemistry, University of Rajasthan, Jaipur, India.
authors.forename: S
authors.initials: S
authors.lastname: Kapoor
authors.forename: P D
authors.initials: PD
authors.lastname: Sharma
authors.forename: Y K
authors.initials: YK
authors.lastname: Gupta