Analytical uses of some n-nitroso-n-alkyl (or -n-cyclo-alkyl)hydroxylamines
| Autor: | J. Canela, F. Buscaróns |
|---|---|
| Rok vydání: | 1974 |
| Předmět: |
chemistry.chemical_classification
Chloroform Trace Amounts Extraction (chemistry) Inorganic chemistry chemistry.chemical_element Vanadium Nitroso Chemical reaction Biochemistry Analytical Chemistry Metal chemistry.chemical_compound chemistry Reagent visual_art Cupferron visual_art.visual_art_medium Environmental Chemistry Titration Solubility Spectroscopy Alkyl Titanium |
| Zdroj: | Analytica Chimica Acta. 70:113-120 |
| ISSN: | 0003-2670 |
| Popis: | The extraction of the hexahydrocupferrates of 17 metals (Cu, Pb, Bi, Sb, Al, Ti, Fe, Co, Ni, Mn, W, Mo, V, Ca. Sr, Ba and Mg) with chloroform is studied in relation to pH values. The extraction constants are calculated and compared with those of cupferron; these can be used to determine the optimal conditions for the separation of many metals. As examples of analytical applications, extractive separations of trace amounts of Sb(III), Bi and Al from, respectively, Pb, Pb and Co were checked. A single extraction allows the removal of major amounts of some metals (Fe, Th and Zr) which interfere in the compleximetric titration of divalent metals (Mn, Zn. Mg, Cd, Pb and Co). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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