Chromatographic study of metal ammines
- 11 Downloads
The movement of metal ammines through filter paper strips has been studied. Mixtures of solutions of the metal salts with NH4Cl and NH4OH were prepared and spotted on strips. 50% ethanol was used as the solvent. It was noted that excess of NH4Cl when present, gave better chromatograms. Increase of NH3 concentration resulted in a change of Rf values. In the case of CuII and NiII the Rf value decreases, while in the case of AgI, CdII and CoII it increases with increasing concentrations of NH4OH added. With progressive increase in the concentration of NH4OH the Rf values finally tend to become constant.
KeywordsPhysical Chemistry Analytical Chemistry Inorganic Chemistry Filter Paper NH4Cl
Unable to display preview. Download preview PDF.
- 1.Gage, Th. B., C. D. Douglas and S. H. Wender: J. chem. Educat. 27, 259 (1950).Google Scholar
- 2.Lederer, M.: Anal. chim. Acta (Amsterdam) 13, 350 (1955); cf. Z. anal. Chem. 151, 448 (1956).Google Scholar
- 3.Miller, J., W. F. Pickering and F. L. Ward: Anal. chim. Acta (Amsterdam) 14, 538 (1956); W. F. Pickering: Anal. chim. Acta (Amsterdam) 14, 337 (1956); cf. Z. anal. Ohem. 156, 37 (1957); 157, 209 (1957).Google Scholar