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- Title
Synergistic Extraction of Calcium and Strontium into Nitrobenzene by Using Hydrogen Dicarbollylcobaltate and N,N'-Dimethyl-N,N'-Diphenyl-2,6-Dipicolinamide.
- Authors
Makrlík, Emanuel; Vaňura, Petr; Selucký, Pavel; Babain, Vasily A.; Smirnov, Igor V.
- Abstract
Extraction of microamounts of calcium and strontium by a nitrobenzene solution of hydrogen dicarbollylcobaltate (H+B-) in the presence of N,N'-dimethyl-N,N'-diphenyl-2,6-dipicolinamide (MePhDPA, L) has been investigated. The equilibrium data have been explained assuming that the species HL+, HL2+, ML22+ and ML32+ (M2+ = Ca2+, Sr2+) are extracted into the organic phase. The values of extraction and stability constants of the cationic complex species in nitrobenzene saturated with water have been determined.
- Subjects
NITROBENZENE; EXTRACTION (Chemistry); CALCIUM; STRONTIUM; HYDROGEN; CARBOXYLIC acids
- Publication
Acta Chimica Slovenica, 2012, Vol 59, Issue 3, p686
- ISSN
1318-0207
- Publication type
Article