ISSN print edition: 0366-6352 ISSN electronic edition: 1336-9075 Registr. No.: MK SR 9/7 Published monthly

Solvent Extraction of Microamounts of Cesium from Water into Nitrobenzene by Using Hydrogen Dicarbollylcobaltate in the Presence of Dicyclohexyl-18-crown-6

P. Vaňura, E. Makrlík, and Z. Valentová

Department of Analytical Chemistry, Prague Institute of Chemical Technology, CZ-166 28 Prague

Received: 6 May 2002

Abstract: Extraction distribution of microamounts of cesium in the water—HNO₃—nitrobenzene—hydrogen dicarbollylcobaltate—dicyclohexyl-18-crown-6 (L) system has been investigated. The equilibrium data have been explained assuming that the complexes HL⁺, CsL⁺, and CsL⁺₂ are extracted into the organic phase. The values of extraction and stability constants of the species in nitrobenzene saturated with water have been determined.

Full paper in Portable Document Format: 574a225.pdf

Chemical Papers 57 (4) 225–228 (2003)