Solvent extraction behaviour of thiocyanic acid.
The solvent extraction behaviour of thiocyanic acid with isobutyl methyl ketone and xylene as solvents is described. In the ketone system the thiocyanic acid is solvated in the organic phase to give a complex with a proposed composition of HSCN. 2IBMK. Deviations from ideal behaviour, which can be attributed to variations in the activity coefficient of the acid in the aqueous phase, are shown.
Solvent extraction studies of thiocyanate complex of the lanthanides
Abstract The extraction behaviours of thiocyanate complex of the lanthanides have been studied for the system M 3+ /NH 4 SCN/TBP/diluent. The distribution ratios have been measured as a function of pH, temperature, NH 4 SCN and TBP concentration. The distribution ratios of the lanthanides decrease with increase of hydrogen ion in the aqueous phase because of the extraction of thiocyanate ion into the organic phase. The composition of europium thiocyanate complex extracted into the organic phase is probably Eu (SCN) 3 (TBP) 4 under the conditions studied. The extraction sequence as a function of the atomic number is compared with the ion exchange sequence for all the lanthanides except Pm.
Zur Kenntnis der Cyanverbindungen der Platinmetalle V. Über die Cyanide und Rhodanide des Rhodiums
1. Die Literaturangaben uber die Verbindung K3[Rh(CN)6] wurden nachgepruft und einige Widerspruche und Unrichtigkeiten geklart.