title: Solvent extraction separation of cobalt(II) from nickel and other metals with cyanex 272.
abstract: Cobalt(II) was quantitatively extracted at pH 8.0 with 5 x 10(-3)M Cyanex 272 [Bis(2,4,4 trimethyl pentyl) phosphoric acid] in chloroform. Cobalt(II) was stripped with 0.5M nitric acid and was determined by atomic absorption spectrometry as well as by spectrophotometry of the complex with nitroso R salt. Cobalt(II) was separated from vanadium, chromium, nickel, manganese, iron and zinc. Mixtures having different ratios of iron, cobalt and nickel were separated by proposed method.
authors.affiliation: Department of Chemistry, Indian Institute of Technology, Bombay-400 076, India.
authors.forename: M N
authors.initials: MN
authors.lastname: Gandhi
authors.forename: N V
authors.initials: NV
authors.lastname: Deorkar
authors.forename: S M
authors.initials: SM
authors.lastname: Khopkar