Letter | Published:

Chromium, Uranium, Tungsten and Nickel Complexes of Thioglycolic Acid

Naturevolume 191pages489490 (1961) | Download Citation

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Abstract

THE most commonly available of the thiol-acids is thioglycolic acid, also known as mercapto-acetic acid. This reagent is favoured by analytical chemists in research and industry1–3 for the colorimetric estimation of iron in micro-quantities because of certain advantages it offers4,5. In this Laboratory this reagent had been used in the annulus method for separation and detection of chromium and titanium on a filter paper6.

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References

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    Welcher, F. J., Organic Analytical Reagents, 4, 159 (D. Van Nostrand, New York, 1948).

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    Fiegl, F., and Caldas, A., Anal. Chem., 23, 8 (1951).

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    The Analysis of Titanium and its Alloys, 47 (Imperial Chemical Industries, Ltd., London, 1959).

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    Swank, H. W., and Mellon, M. G., Indust. Eng. Chem., Anal. Ed., 10, 7 (1938).

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    Sandell, E. B., Colorimetric Determination of Traces of Metals, second ed., 364 (Interscience, 1950).

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    Bhuchar, V. M., and Verma, M. R., Mikrochim. Acta, 342 (1958).

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    Will, Fritz, III, and Yoe, J. H., Anal. Chem., 25, 1363 (1953).

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    Otterson, D. A., and Graab, J. W., Anal. Chem., 30, 1282 (1958).

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    Davenport, W. H., and Thomason, P. F., Anal. Chem., 21, 1093 (1949).

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    Bhuchar, V. M., see Adv. in Polarography, 2, 537; Proc. Second Intern. Cong. Polarography, Cambridge (1959), edit. by I. S. Longmuir (Pergamon Press, Oxford, 1960).

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    Bhuchar, V. M., and Dalziel, J. A. W. (presented to the Second Seminar on Electrochemistry, Central Electrochemical Research Institute, Karaikudi, India, 1960).

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    Haywood, F. W., and Wood, A. A. R., Metallurgical Analysis with Spekker Absorptiometer, 20 (Hilger and Watts, London, 1957).

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Affiliations

  1. National Physical Laboratory, New Delhi, 12, India

    • V. M. BHUCHAR

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https://doi.org/10.1038/191489a0

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