TITLE:
Analytical Application of Ion Associates of Molybdenum with Dithiolphenols and Aminophenols
AUTHORS:
K. A. Kuliev, N. A. Verdizade, S. G. Aliev, U. B. Abasquliyeva, N. N. Efendieva
KEYWORDS:
Molybdenum, 2,6-Dithiol-4-Methylphenol, 2,6-Dithiol-4-Ethylfenol, 2,6-Dithiol-4-Tert-Butyl Phenol, Mixed-Ligand Complexes, Extraction-Photometric Method, Determination
JOURNAL NAME:
Journal of Materials Science and Chemical Engineering,
Vol.7 No.4,
April
23,
2019
ABSTRACT: The mixed-ligand complexes of molybdenum(VI) with dithiolphenols (DP) {2,6-dithiol-4-methylphenol (DTMP), 2,6-dithiol-4-ethylphenol (DTEP) and 2,6-dithiol-4-tert-butylphenol (DTBP)} in the presence of hydrophobic amines have been investigated by spectrophotometric method. The condition of complexing and extraction, physical-chemical and analytical characteristics of this complex have been found. As hydrophobic amine 2(N, N-dimethylaminomethyl)-4-methylrphenol (АP1) and 2(N, N-dimethylaminomethyl)-4-xlor-phenol (AP2), 2 (N, N-dimethylamino-methyl)-4-brom-phenol (AP3) were used. It has been found that mixed-ligand complex was formed in weakly acidic medium (pH 4.1 - 5.9). The maximum analytical signal when complexing Mo(V) is observed at 516 - 534 nm. The calculated molar absorption (εmax) belongs to the range (4.16 - 5.35) × 104. The Beer’s law was applicable in the range of 0.3 - 22 μg/ml. The extraction photometric methods of the molybdenum determination were processed. The influence of diverse ions on determination of molybdenum has been studied. The proposed method was applied successfully to determine amount of molybdenum in steel and in soil.