Extraction-photometric determination of bismuth in antimony
Journal Article
·
· Ind. Lab. (Engl. Transl.); (United States)
OSTI ID:5572241
The heteroligand coordination-solvated complex Bi-tetramethylenethiourea (TMTU)-I/sup -/ (Bi:TMU:I/sup -/ = 1:2:3) is 96-98% extracted by chloroform from a medium of 0.5-1.5 M sulfuric acid at concentrations of (5-8). 10/sup -3/M TMU and (6-10) x 10/sup -3/ M potassium iodide and is characterized by a rather high molar extinction coefficient (epsilon = 1.13 x 10/sup 4/) at lambda = 480 nm. In this communication they demonstrate the possibility of using this complex as an analytical form for the extraction separation and photometric determination of bismuth in the presence of antimony. It was established that in the presence of tartaric acid, the following do not interfere with the extraction of 2-50 ..mu..g bismuth: up to 2 g Sb(III), 100 mg Ni, Zn, Fe, and Cr(III); 2 mg Mo(VI) and W(VI); 1 mg Cu(II). Beer's law is fulfilled in the range of contents 2-50 ..mu..g bismuth. With an antimony sample weighing 1 g, it is possible to determine 2 x 10/sup -4/% bismuth.
- Research Organization:
- A. V. Bogatskii Physicochemical Institute, Odessa, USSR
- OSTI ID:
- 5572241
- Journal Information:
- Ind. Lab. (Engl. Transl.); (United States), Journal Name: Ind. Lab. (Engl. Transl.); (United States) Vol. 53:1; ISSN INDLA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102 -- Chemical & Spectral Procedures
400105* -- Separation Procedures
ACCURACY
ANTIMONY
ANTIMONY COMPLEXES
BISMUTH
BISMUTH COMPLEXES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACIDS
CHROMIUM COMPOUNDS
COMPLEXES
COMPLEXOMETRY
COPPER COMPOUNDS
ELEMENTS
EXTRACTION
HALOGEN COMPOUNDS
HYDROXY ACIDS
INTERFERING ELEMENTS
IODINE COMPOUNDS
IRON
LIGANDS
METALS
MOLYBDENUM COMPOUNDS
NICKEL
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
REFRACTORY METAL COMPOUNDS
SEPARATION PROCESSES
SOLVATION
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SPECTROPHOTOMETRY
TARTARIC ACID
THIOUREAS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN COMPOUNDS
ZINC
400102 -- Chemical & Spectral Procedures
400105* -- Separation Procedures
ACCURACY
ANTIMONY
ANTIMONY COMPLEXES
BISMUTH
BISMUTH COMPLEXES
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACIDS
CHROMIUM COMPOUNDS
COMPLEXES
COMPLEXOMETRY
COPPER COMPOUNDS
ELEMENTS
EXTRACTION
HALOGEN COMPOUNDS
HYDROXY ACIDS
INTERFERING ELEMENTS
IODINE COMPOUNDS
IRON
LIGANDS
METALS
MOLYBDENUM COMPOUNDS
NICKEL
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
REFRACTORY METAL COMPOUNDS
SEPARATION PROCESSES
SOLVATION
SOLVENT EXTRACTION
SOLVENT PROPERTIES
SPECTROPHOTOMETRY
TARTARIC ACID
THIOUREAS
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
TUNGSTEN COMPOUNDS
ZINC