An experimental study of hydrolytic behavior of thulium in basic and near-neutral solutions

Abstract

Hydrolytic equilibria of Tm (III) in KOH solutions were studied at 25°C. A spectrophotometry with m-cresol purple and 2-naphthol as pH indicators was used at an ionic strength of not more than 0.0005. The results indicate that in freshly prepared solutions at pH ranging between 6 and 10 Tm is present as , , and . The stepwise stability constants of hydroxide complexes calculated at zero ionic strength were obtained as coefficient of linear regression equations from the graph of optical densities of the indicators in Tm solutions at varying pH.

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Stepanchikova, S. , Biteykina, R. and Sava, A. (2013) An experimental study of hydrolytic behavior of thulium in basic and near-neutral solutions. Open Journal of Inorganic Chemistry, 3, 42-47. doi: 10.4236/ojic.2013.32006.

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1] Powell, K.J., Brown, P.L., Byrne, R.H., Gajda, T., Hefter, G., Leuz, A.-K., Sj?berg, S. and Wanner, H. (2011) Chemical speciation of environmentally significant metals with inorganic ligands. Part 4: The Cd2++ OH–, Cl–, , and systems (IUPAC Technical Report). Pure and Applied Chemistry, 5, 1163-1214. doi:10.1351/PAC-REP-10-08-09
[2] Powell, K.J., Brown, P.L., Byrne, R.H., Gajda, T., Hefter, G., Leuz, A., Sj?berg, S. and Wanner, H. (2009) Chemical speciation of environmentally significant metals with inorganic ligands. Part 4: The Pb2++ OH–, Cl–, , , and systems (IUPAC Technical Report). Pure and Applied Chemistry, 12, 2425-2476. doi:10.1351/PAC-REP-09-03-05
[3] Wood, S.A. (2010) Advances in the aqueous solutions chemistry of trivalent rare earth elements at temoeratures up to 250?C: Relevance to near-field radioactive waste disposal environments. GSA Denver Annual Meeting, Geological Society of America Abstracts with Programs, 31 October-3 November 2010, 5, 357.
[4] Dubinin, A.V. (2006) Geochemistry of rare earth elements in the ocean. Nauka, Moscow.
[5] Riabchikov, D.I. and Riabouhin, V.A. (1966) Analytical chemistry of rare earth elements and yttrium. Nauka, Moscow.
[6] Ganjali, M.R., Norouzi. P. and Adergania, B.A. (2007) Thulium (III) ions monitoring by a novel thulium (III) microelectrode based on a S-N schiff base. Electroanalysis, 19, 1145-1151. doi:10.1002/elan.200603833
[7] Frolova, U.K., Kumok, V.N. and Serebrennikov, V.V. (1966) Hydrolisis of rare earth elements and yttrium in water solutions. Izvestia Visshih Uchebnih Zavedenij SSSR. Khimija I Khimitcheskaja Tekhnologija, 2, 176-179.
[8] Guillaumont, R., Desire, B. and Galin, M. (1971) Premiere constante d’hydrolise des lanthanides. Radiochemical and Radioanalytical Letters, 3, 189-197.
[9] Klungness, G.D. and Byrne, R.H. (2000) Comparative hydrolysis behavior of the rare earth and yttrium: The influence of temperature and ionic strength. Polyhedron, 19, 99-107. doi:10.1016/S0277-5387(99)00332-0
[10] Baes, C.F. and Mesmer, R.E. (1976) The hydrolysis of cations. John Wiley, New York.
[11] Marchenko, Z.I. (1971) Photometric definitions of elements. Mir, Moscow.
[12] Soumillion, J.Ph., Vandereecken, P., Van Der Auweraer, M. and De Schryver, F.C. (1989) Photophysical analysis of ion pairing of β-naphtholate in medium polarity solvents: Mixtures of contact and solvent-separated ion pairs. Journal of American Chemical Society, 111, 2217-2225. doi:10.1021/ja00188a041
[13] Clayton, T.D. and Byrne, R.H. (1993) Spectrophotometric seawater pH measurement: Total hydrogen ion concentration scale calibration of m-cresol purple and atsea results. Deep-Sea Research, 40, 2115-2129. doi:10.1016/0967-0637(93)90048-8
[14] Chamjangali, M.A., Ghadamali, B. and Salek-Gilani, N. (2009) New induction period based spectrophotometric method for the determination of iron (II) in pharmaceutical products. Acta Chimica Slovakia, 50, 434-440.
[15] Kragten, J. and Decnop-Weever, L.G. (1983) Hydroxide complexes of lanthanides-V*. Erbium in perchlorate medium. Talanta, 2, 131-133. doi:10.1016/0039-9140(83)80033-2
[16] Xiang, T. and Johnston, K.P. (1994) Acid-base behavior of organic compounds in supercritical water. Journal of Physical Chemistry, 98, 7915-7922. doi:10.1021/j100083a027
[17] Xiang, T., Johnston, K.P., Wofford, W.T. and Gloyna, E.F. (1996) Spectroscopic measurement of pH in aqueous sulfuric acid and ammonia from sub to supercritical conditions. Industrial Engineering Chemistry Researches, 35, 4788-4795. doi:10.1021/ie960368y
[18] Wofford, W.T., Gloyna, E.F. and Johnston, K.P. (1998) Boric acid equilibria in near-critical and supercritical water. Industrial Engineering Chemistry Researches, 37, 2045-2051. doi:10.1021/ie9707634
[19] Fatin-Rouge, N. and Bünzli, J.-C.G. (1999) Thermodynamic and structural study of inclusion complexes between trivalent lanthanide ions and native cyclodextrins. Inorganica Chimica Acta, 293, 53-60. doi:10.1016/S0020-1693(99)00227-3

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