Stafilov, Trajche and Pavlovska, Gorica and Čundeva, Katarina (1998) Iron(III) Hexamethylenedithocarbamate as a New Flotation Collector for Separation of Total Chromium. Microchemical Journal, 60 (1). pp. 32-41. ISSN https://doi.org/10.1006/mchj.1998.1634
Full text not available from this repository.Abstract
Total chromium is removed from dilute aqueous solutions by means of hexamethyleneammonium hexamethylenedithiocarbamate (HMA-HMDTC) as a new reagent used for flotation. Amount of collector-hydrated iron(III) oxide (Fe2O3·xH2O) and iron(III) hexamethylenedithiocarbamate (Fe(HMDTC)3), pH, ionic strength, induction time, etc., necessary for the successful simultaneous incorporation of Cr(III) and Cr(VI) traces into the structure of collectors was studied. At established pH (6.0) and ionic strength (0.02 mol/L), using NaDDS as foaming reagent, total chromium can be separated quantitatively with 10 mg Fe(III) and 0.0003 mol HMDTC−added to 1 L of water sample. Electrothermal vaporization atomic absorption spectrometry (ETVAAS) was applied for determination of chromium concentration in tap and spring waters. The recoveries of total chromium from natural water samples have been higher than 95.5%. The limit of detection of chromium by this method is 0.01 μg/L.
| Item Type: | Article |
|---|---|
| Subjects: | Scientific Fields (Frascati) > Engineering and Technology > Chemical engineering Scientific Fields (Frascati) > Natural sciences > Chemical sciences Scientific Fields (Frascati) > Engineering and Technology > Environmental engineering Scientific Fields (Frascati) > Engineering and Technology > Other engineering and technologies |
| Divisions: | Faculty of Technology and Technical Sciences |
| Depositing User: | Prof. d-r. Gorica Pavlovska |
| Date Deposited: | 03 Apr 2023 12:31 |
| Last Modified: | 03 Apr 2023 12:31 |
| URI: | https://eprints.uklo.edu.mk/id/eprint/7915 |
Actions (login required)
 |
View Item |