SPECTROPHOTOMETRIC DETERMINATION OF VANADIUM(V) IN THE CLAY SAMPLES
Journal Title: Azerbaijan Chemical Journal - Year 2017, Vol 0, Issue 3
Abstract
Complexation of vanadium(V) with a reagent synthesized based on pyrogallol – 2,3,4-trihydroxy-5-sulphoazonaphtalin has been studied by spectrophotometric method. It was found that at pH=5, λmax = 437 nm intensively colored binary complex is formed. There was also studied the influence of the third components on complexation. As one we used for setylpyridine chloride, setylpyridine bromide and decamethoxin. Optimum conditions of complexation were established. It is found that the maximum exit of mixed ligand complexes was observed at pH=3, λ=471, 479 and 466 nm, for VR–SPCl, VR–SPBr, VR–DMS respectively. There have been calculated stability constants of complexes, the ratio of reacting components in the composition and concentration ranges submission to Beer's law. The influence of foreign ions and masking substances on the complexation was studied. The developed method was approbated in the photometric determination of vanadium(V) in the clay samples
Authors and Affiliations
M. B. Gasanova, R. A. Aliyeva, R. Z. Nazarova, J. I. Mirzai
Keywords
Related Articles
- EP ID EP418586
- DOI -
- Views 120
- Downloads 0
THE RESEARCH OF COPOLYMERIZATION REACTIONS OF ALLYL AND VINYL ACETYLSALICYLATES WITH MALEIC ANHYDRIDE
The copolymerization reactions of allyl- and vinyl ether of salicylic acid with maleic anhydride (MA) have been researched. It was shown that with transferring charge copolymer monomer pairs make complex and these comple...
SOLUTION OF THE PROBLEMS OF NON-STATIONARITY PROCESSES IN ETHYLENE REGION OF A CHEMICAL TECHNOLOGICAL COMPLEX ON PROCESSING THE CRACKING AND PYROLYSIS GASES
Dynamics of the processes in the greatest – ethylene region of chemical-technological complex has been studied, the functions taking into account non-stationarity of the processes has been chosen, their dynamic kinetic m...
CONTROL OF THE DIRECT HYDRATION PROCESS OF ETHYLENE IN ACCORDANCE WITH ITS PROCEEDING DYNAMICS
The article offers a calculation of the process of direct hydration of ethylene, which takes place under non-stationary conditions, caused by the removal of phosphoric acid from the carrier and leading to a decrease in t...
SYNTHESIS OF ACETYLENE EPOXYKETONE OF ALIFATIC SERIES
It has been established that an addition of bromine to 2-methyl-1,2-epoxy-4-hexen-3-ones leads to the mixture of two diastereoisomers of dibromoepoxyketones. In influence on mixture of diastereoisomers of 4,5-dibrom-2-me...
EXTRACTION ENNOBLEMENT OF DIESEL DISTILLATE AND ITS CLOSE-CUT FRACTIONS
The results of the studies, carried out on the initial diesel distillates, and also raffinates and extracts, obtained by their extractive purification in the presence of ionic liquid on the basis of N-methylpyrrolidone a...