Abstract
Ca(II) ions react with arsenazo, 2-(4-arsonophenyl)-azo-7-(4-antipyril)azo-l,8-dihydroxy-3,5-naphtalene disulphonic acid, at pH 10.0 to produce a blue complex, with stoichiometry 1∶1, and stability constant of 6.64×105. Its molar absorptivity is 3.78×1041·mol−1 cm−1. This reagent has been used as metallochromic indicator in the complexometric titration of Ca. Its colour transition has been specified by tristimulus colourimetry. New parameters are defined and compared to Ringbom's parameters.
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References
S. B. Savvin,Talanta 1961,8, 79.
S. B. Savvin,Talanta 1964,11, 7.
I. P. Alimarin, S. B. Savvin, L. A. Okhanova,Talanta 1968,15, 601.
I. P. Alimarin, Si-I. Khan,Zh. Anal. Khim. 1963,18, 82.
I. P. Alimarin, S. B. Savvin,Talanta 1966,13, 689.
S. B. Savvin, Yu. M. Dedkov,Zavod. Lab. 1964,30, 645.
A. Muck, M. B. Pravica,Anal. Chim. Acta 1969,45, 534.
P. Dedkova, T. G. Akinova, S. B. Savvin,Zh. Anal. Khim. 1977,32, 38.
S. B. Savvin, T. V. Petrova,Zh. Anal. Khim. 1969,24, 177.
V. F. Luk'yanov, F. P. Doderova, E. F. Novak,Zavod. Lab. 1976,42, 1302.
J. A. Pérez-Bustamante, F. Burriel,Anal. Chim. Acta 1967,37, 49.
A. I. Lazarev, V. I. Lazareva,Zh. Anal. Khim. 1968,23, 36.
B. Budesinsky, K. Haas, A. Bezdekova,Collect. Czech. Chem. Commun. 1967,32, 1528.
S. B. Savvin, P. N. Romanov, Yu. G. Eremin,Zh. Anal. Khim. 1966,21, 1423.
J. W. Ferguson, J. J. Richard, J. W. O'Laughlin, C. V. Banks,Anal. Chem. 1964,36, 796.
B. W. Budesinsky,Anal. Chim. Acta 1974,71, 343.
S. B. Savvin, R. F. Propistsova, L. A. Okhanova,Talanta 1969,16, 423.
A. A. Muck, M. B. Pravica,Anal. Chem. 1974,46, 1121.
A. López Molinero, Doctoral Thesis, University of Zaragoza, Spain, 1983.
J. Cacho, A. Garnica, C. Nerín,Anal. Chim. Acta 1984,162, 113.
G. Schwarzenbach, H. Flaschka,Complexometric Titrations, 2nd Ed., Methuen, London, 1969.
J. Cacho, C. Nerín, L. Ruberte, E. Rivas,Anal. Chem. 1982,54, 1446.
L. Sommer, T. Sepel, V. M. Ivanov,Talanta 1968,15, 949.
P. Job,Ann. Chim. Phys. 1928,9, 113.
Y. Marcus,Isr. J. Chem. 1967,5, 143.
F. W. Bill Meyer,Colouring of Plastics, Wiley, New York, 1979, p. 32.
C. N. Reilley, H. Flaschka, S. Laurent, B. Laurente,Anal. Chem. 1960,32, 1218.
S. Kotrly, K. Vytras,Talanta 1971,18, 253.
A. Ringbom,Les complexes en Chimie Analytique, Dunod, Paris, 1967.
J. R. Kerr,Analyst 1960,85, 867.
F. H. Pollard, J. V. Martin,Analyst 1950,81, 348.
T. S. West,Analyst 1962,87, 630.
V. Michaylova, N. Konleva,Talanta 1974,21, 523.
A. Young, T. R. Sweetand, B. B. Baker,Anal. Chem. 1955,27, 356.
J. Bosholm,Anal. Chim Acta 1966,34, 71.
G. P. Hildebrand, C. N. Reilley,Anal. Chem. 1957,29, 258.
M. A. Alvarez, J. A. Pérez-Bustamante,Ann. Quitn. 1977,73, 978.
M. Silva, M. Valcarcel,Analyst 1980,105, 193.
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Cacho Palomar, J., López Molinero, A. & Ibañez, M. Arsenazo, 2-(4-arsonophenyl(azo-7-(4-antipyril)azo-1,8-dihydroxy-3,6-naphtalene disulphonic acid as reagent for calcium ions. New parameters for metallochromic indicator characterization. Mikrochim Acta 88, 73–85 (1986). https://doi.org/10.1007/BF01196689
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DOI: https://doi.org/10.1007/BF01196689