Published 1977
| Version v1
Miscellaneous
Hexyldiantipyrilemethane as an extraction reagemt for molybdenum (6) and tungsten (6)
Description
Extraction of molybdenum and tungsten with hexyldiantipyrylmethane (HDAM) has been studied. Extraction out from sulphate, nitrate, and chloride solutions containing 0.025 g-ion/1 Mo(6) or 0.0125 g-ion/1 W(6) has been performed with 0.125 M solution of HDAM in chloroform. Out from weakly acid solution a compound is extracted with a ratio of HDAM:Mo or W exceeding 1:2; out from 8 N solution of HCl the HDAM:Mo ratio is 1:1. The effect of foreign elements on molybdenum extraction from sulphuric acid solutions has been studied. Extraction of Mo(6) is hindered by Cr(6), V(5), Mn(7), Re(7). Similar data are obtained for tungsten. The method proposed is highly selective for separating and determining Mo(6) and W(6)
Additional details
Additional titles
- Original title (Russian)
- Гексилдиантипирилметан как экстракционный реагент на молибден(VI) и вольфрам(VI)
Publishing Information
- Imprint Title
- Pyrazolone derivatives usage in analytical chemistry
- Journal Page Range
- p. 34-40.
- Report number
- INIS-mf--4643
INIS
- Country of Publication
- USSR
- Country of Input or Organization
- USSR
- INIS RN
- 10432434
- Subject category
- S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; S37: INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY;
- Descriptors DEI
- CHEMICAL COMPOSITION; MOLYBDENUM COMPLEXES; PH VALUE; PYRAZOLINES; QUANTITATIVE CHEMICAL ANALYSIS; SOLVENT EXTRACTION; TUNGSTEN COMPLEXES
- Descriptors DEC
- AZOLES; CHEMICAL ANALYSIS; COMPLEXES; HETEROCYCLIC COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PYRAZOLES; SEPARATION PROCESSES; TRANSITION ELEMENT COMPLEXES
Optional Information
- Notes
- Imprint:Primenenie proizvodnykh pirazolona v analiticheskoj khimii.;Mezhvuzovskij sbornik nauchnykh trudov.