Extraction-photometric determination of bismuth in antimony

Journal Article · Wed Jul 01 00:00:00 EDT 1987 · Ind. Lab. (Engl. Transl.); (United States)

OSTI ID:5572241

Presnyak, I S; Antonovich, V P; Nazarenko, V A

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), Vol. 53:1; Other Information: Translated from Zavod. Lab.; 53: No. 1, 13(Jan 1987)
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
ANTIMONY
SOLVENT EXTRACTION
SPECTROPHOTOMETRY
BISMUTH
IODINE COMPOUNDS
SOLVENT PROPERTIES
THIOUREAS
ACCURACY
ANTIMONY COMPLEXES
BISMUTH COMPLEXES
CHROMIUM COMPOUNDS
COMPLEXOMETRY
COPPER COMPOUNDS
INTERFERING ELEMENTS
IRON
LIGANDS
MOLYBDENUM COMPOUNDS
NICKEL
SOLVATION
TARTARIC ACID
TUNGSTEN COMPOUNDS
ZINC
CARBONIC ACID DERIVATIVES
CARBOXYLIC ACIDS
COMPLEXES
ELEMENTS
EXTRACTION
HALOGEN COMPOUNDS
HYDROXY ACIDS
METALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
REFRACTORY METAL COMPOUNDS
SEPARATION PROCESSES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
400105* - Separation Procedures
400102 - Chemical & Spectral Procedures