PL EN


Preferencje help
Widoczny [Schowaj] Abstrakt
Liczba wyników
Czasopismo
2005 | 3 | 4 | 747-755
Tytuł artykułu

Investigation of the extraction equilibrium of ion-association complexes of molybdenum (VI) with some polyphenols and thiazolyl blue. extraction-spectrophotometric determination of molybdenum

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
The extraction process of ternary ion-association complexes of molybdenum (VI) with some polyphenols (4-nitrocatechol, 2,3-dihydroxy naphthalene) and thiazolyl blue has been investigated by using an extraction-spectrophotometric method. The optimum conditions for their quantitative preparation in aqueous medium and subsequent extraction into an organic solvent have been found. The extraction, distribution and association constants, and the recovery factors have been calculated. The composition of the complexes has been determined. A precise, sensitive and simple extraction-spectrophotometric method for determination of molybdenum in products from ferrous metallurgy has been developed.
Wydawca

Czasopismo
Rocznik
Tom
3
Numer
4
Strony
747-755
Opis fizyczny
Daty
wydano
2005-12-01
online
2005-12-01
Twórcy
  • Department of General and Inorganic Chemistry, Plovdiv University, 24 Tsar Assen Str., 4000, Plovdiv, Bulgaria, andim@pu.acad.bg
autor
  • Department of General and Inorganic Chemistry, Plovdiv University, 24 Tsar Assen Str., 4000, Plovdiv, Bulgaria
  • Department of General and Inorganic Chemistry, Plovdiv University, 24 Tsar Assen Str., 4000, Plovdiv, Bulgaria, kgavazov@abv.bg
  • Department of Chemical Technology, Plovdiv University, 24 Tsar Assen Str., 4000, Plovdiv, Bulgaria
Bibliografia
  • [1] A.I. Busev: Analytical Chemistry of Molybdenum, Nauka, Moscow, 1962.
  • [2] L. Sommer and M. Bartušek: “Complexation of phenolic hydroxyl and its analytical consequences”, Folia Fac. Sci. Nat. UJEP Brno Chem., Vol. 7(5), (1966).
  • [3] A.T. Pilipjenko and M.M. Tananayko: Mixed Ligand and Mixed Metal Complexes and their Application in Analytical Chemistry, Khimiya, Moscow, 1983.
  • [4] A. Alexandrov: Tetrazolium Salls for Solvent Extraction of Elements as Ion association Complexes. Review, Universität des Saarnlades, Saarbrücken, 1984.
  • [5] A. Dimitrov and A. Alexandrov: “Investigation of the extraction equilibrium of ternary ion-association complexes of wolfram (VI) with some polyphenols and tetrazolium salts. Determination of wolfram”, Anal. Lab., Vol. 4, (1995), pp. 172–179.
  • [6] S. Kostova, A. Alexandrov and A. Dimitrov: “Ion-association complexes of titanium(IV) with polyphenols and tetrazolium salt. Extraction-spectrophotometric determination of titanium in steels and aluminium alloys”, Anal. Lab, Vol. 7, (1998), pp. 13–19.
  • [7] A. Dimitrov, S. Kostova and A. Alexandrov: “Extraction-spectrophotometric study of the ion-association complexes of germanium(IV) with 4-nitrocatechol and 2,3,5-triphenyltetrazolium chloride”, Anal. Lab., Vol. 7, (1998), pp. 20–23.
  • [8] S. Kostova, A. Dimitrov and A. Alexandrov: “Complexation of titanium(IV) with 4-nitrocatechol and tetrazolium salts tetrazolviolet and iodonitrotetrazolium chloride”, Chem. Pap., Vol. 54 (2000), pp. 66–71.
  • [9] A. Dimitrov and S. Kostova: “Extraction-spectrophotometric study of germanium(IV) ion-association complexes with 4-nitrocatechol and thiazolyl blue”, Bulg. Chem. and Industry, Vol. 70, (1999), pp. 88–90.
  • [10] A. Dimitrov, S. Kostova, J. Pancheva and V. Lekova: “Extraction spectrophotometric studies of the ion association complex of molybdenum(VI) with 4-nitrocatechol and Tetrazolium violet”, Bulg. Chem. and Industry, Vol. 73, (2002), p. 20.
  • [11] S. Kostova and A. Dimitrov: “Extraction Spectrophotometric studies of Molybdenum(VI) Ion-Association Complexes with some Polyphenols and Tetrazolium Salts”, Bulg. Chem. and Industry, Vol. 71, (2000) p. 44.
  • [12] Zh. Simeonova, K. Gavazov and A. Alexandrov: “Ternary Complexes of Vanadium(V) with 4-nitrocathechol and Tetrazolium Salt and its Application to Extraction-Spectrophotometric Determination of Vanadium(V) in Steels”, Anal. Lab., Vol. 7, (1998), pp. 184–188.
  • [13] K. Gavazov, Zh. Simeonova and A. Alexandrov: “Extraction-Spectrophotometric Study of Ternary Ion-Association Complexes of Vanadium(IV) with Pyrogallol and Tetrazolium Salts”, Russian J. Inorg. Chem., Vol. 45, (2000), pp. 133–138.
  • [14] K. Gavazov, Zh. Simeonova and A. Alexandrov: “Extraction-Spectrophotometric Study of the System Vanadium(V)- Pyrogallol-Iodo-nitro-tetrazolium Chloride -Water-n-Butanol”, Russian J. Inorg. Chem., Vol. 46, (2001), pp. 427–431.
  • [15] M.I. Bulatov and I.P. Kalinkin: Practical Handbook of Photometric Methods of Analysis, Khimiya, Leningrad, 1986.
  • [16] A. Hrdlicka and M. Vrchlabsky: “Complex equilibria of molybdenum (VI) with 2,3-dihydroxynaphtalene”, Mikrochim. Acta, /Wien/, Vol. 2, (1989), pp. 55–59. http://dx.doi.org/10.1007/BF01244517[Crossref]
  • [17] M. Bartusek: Scripla Fac. Sci. Nat. UJEP, Brno. Chem., Vol. 13, (1983), p. 107.
  • [18] M. Bartusek: “Molybdän(VI)- and Wolfram (VI)-Chelate mit Diphenolen”, Collect. Czech. Chem. Commun., Vol. 38, (1973), pp. 2255–2267. [Crossref]
  • [19] B. Grebenova and M. Vrchlabsky: “Extraktion und Spektrophotometrische molybdänbestimmung im Dreikomponentenkomplex mit brenzeatechin und alkyltriphenylphosphoniumkation”, Collect. Czech. Chem. Commun., Vol. 38, (1973), pp. 379–393. [Crossref]
  • [20] W. Likussar and D. Boltz: “Theory of Continuous Variations Plots and a New method for Spectrophotometric Determination of Extraction and Formation Constants”, Anal. Chem., Vol. 43, (1971), pp. 1265–1273. http://dx.doi.org/10.1021/ac60304a006[Crossref]
  • [21] V.N. Muzgin, L.B. Hamzina, V.L. Zolotovin and I.Ya. Bezrukov: Analytical Chemistry of Vanadium, Nauka, Moscow, 1981, p. 36.
  • [22] G. Charlot: Colorimetric Determination of Elements, Amsterdam, Elsevier, 1964, p. 301.
  • [23] A.G. Fogg, J.L. Kumar and D.T. Burs: “Spectrophotometric determination of molybdenum in steel with thiocyanate and tetraphenylarsonium chloride”, Analyst, Vol. 100, (1975), pp. 311–315. http://dx.doi.org/10.1039/an9750000311[Crossref]
  • [24] B.F. Quin and R.R. Brooks: “The rapid colorimetric determination of molybdenum with dithiol in biological, geochemical and steel samples”, Anal. Chim. Acta., Vol. 74, (1975), pp. 75–84. http://dx.doi.org/10.1016/S0003-2670(01)82781-1[Crossref]
Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_BF02475202
JavaScript jest wyłączony w Twojej przeglądarce internetowej. Włącz go, a następnie odśwież stronę, aby móc w pełni z niej korzystać.