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Hexamminecobalt(III) tricarbonatocobaltate(III) as a redox titrant for the determination of iodide, sulfide, sulfite, and thiosulfate

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Summary

Hexamminecobalt(III) tricarbonatocobaltate(III) has been used for the determination of iodide. The effect of chloride and bromide, individually and collectively, have also been studied.

The determination of sulfide, sulfite and thiosulfate, respectively, with Co(NH3)6Co(CO3)3 as volumetric oxidimetric titrant has been demonstrated. The respective quantities determined are from 5.84 mg to 195.00μg with a maximum standard deviation of 0.91 %, from 24.85 mg to 249.00μg with a maximum standard deviation of 0.39 %, and from 12.60 mg to 126.00μg with a maximum standard deviation of 0.64%.

Zusammenfassung

Hexaminkobalt(III)tricarbonatokobaltat(III) (A) wurde zur Jodidbestimmung verwendet. Dabei wurde die Wirkung von anwesendem Chlorid und Bromid — einzeln und gemeinsam — untersucht. Die Bestimmung von Sulfid, Sulfit und Thiosulfat mit A als volumetrisches Oxydationsmittel wurde beschrieben. Die bestimmbaren Mengen liegen zwischen 5,84 mg und 195,0μg mit einer maximalen Standardabweichung von 0,91 %, zwischen 24,85 mg und 249,0μg mit einer maximalen Standardabweichung von 0,39% bzw. zwischen 12,60 mg und 126,0μg mit einer maximalen Standardabweichung von 0,64%.

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Authors and Affiliations

  1. Pakistan Council of Scientific and Industrial Research Laboratories, Lahore-16, Pakistan

    Muhammad Hanif, Muhammad Saleem, Zafarullah Sheikh & J. Zyka

  2. Government College, Lahore, Pakistan

    Muhammad Saleem

  3. Institute of Chemical Engineering & Technology, Panjab University, Lahore, Pakistan

    Zafarullah Sheikh

  4. Department of Analytical Chemistry, Charles University, Prague, Czechoslovakia

    J. Zyka

Authors
  1. Muhammad Hanif
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  2. Muhammad Saleem
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  3. Zafarullah Sheikh
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  4. J. Zyka
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Hanif, M., Saleem, M., Sheikh, Z. et al. Hexamminecobalt(III) tricarbonatocobaltate(III) as a redox titrant for the determination of iodide, sulfide, sulfite, and thiosulfate. Mikrochim Acta 66, 625–633 (1976). https://doi.org/10.1007/BF01220123

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  • DOI: https://doi.org/10.1007/BF01220123

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