The reduction of hexanitrocobaltate(III) ion in the presence of hexadecyltrimethylammonium bromide
Апстракт
The influence of cationic surfactant hexadecyltrimethylammonium bromide (CTAB) on the kinetics of the spontaneous reduction of the analytically important compound, sodium hexanitrocobaltate(III), was studied. The spontaneous reduction was monitored spectrophotometrically at pH 2 and 5 and at concentrations of CTAB from 1 x 10(-5) to 5 x 10(-4) M. The mechanism of this process was described using two consecutive first-order reactions. A decrease in the rate constant for reduction at pH 5 in solutions containing CTAB in concentrations of 5.6 x 10(-5) M (critical micelle concentration) compared with its rate in an aqueous solution was observed. These effects could be explained by electrostatic and hydrophobic/hydrophilic interactions between the micellar pseudophase and the hexanitrocobaltate(III) ion.
Извор:
Russian Journal of Physical Chemistry A, 2008, 82, 5, 709-712
DOI: 10.1134/S0036024408050038
ISSN: 0036-0244
WoS: 000255747800003
Scopus: 2-s2.0-43449101914
Колекције
Институција/група
VinčaTY - JOUR AU - Sovilj, Sofija P. AU - Vasić, Vesna M. AU - Stojić, Dragica Lj. PY - 2008 UR - https://vinar.vin.bg.ac.rs/handle/123456789/3443 AB - The influence of cationic surfactant hexadecyltrimethylammonium bromide (CTAB) on the kinetics of the spontaneous reduction of the analytically important compound, sodium hexanitrocobaltate(III), was studied. The spontaneous reduction was monitored spectrophotometrically at pH 2 and 5 and at concentrations of CTAB from 1 x 10(-5) to 5 x 10(-4) M. The mechanism of this process was described using two consecutive first-order reactions. A decrease in the rate constant for reduction at pH 5 in solutions containing CTAB in concentrations of 5.6 x 10(-5) M (critical micelle concentration) compared with its rate in an aqueous solution was observed. These effects could be explained by electrostatic and hydrophobic/hydrophilic interactions between the micellar pseudophase and the hexanitrocobaltate(III) ion. T2 - Russian Journal of Physical Chemistry A T1 - The reduction of hexanitrocobaltate(III) ion in the presence of hexadecyltrimethylammonium bromide VL - 82 IS - 5 SP - 709 EP - 712 DO - 10.1134/S0036024408050038 ER -
@article{ author = "Sovilj, Sofija P. and Vasić, Vesna M. and Stojić, Dragica Lj.", year = "2008", abstract = "The influence of cationic surfactant hexadecyltrimethylammonium bromide (CTAB) on the kinetics of the spontaneous reduction of the analytically important compound, sodium hexanitrocobaltate(III), was studied. The spontaneous reduction was monitored spectrophotometrically at pH 2 and 5 and at concentrations of CTAB from 1 x 10(-5) to 5 x 10(-4) M. The mechanism of this process was described using two consecutive first-order reactions. A decrease in the rate constant for reduction at pH 5 in solutions containing CTAB in concentrations of 5.6 x 10(-5) M (critical micelle concentration) compared with its rate in an aqueous solution was observed. These effects could be explained by electrostatic and hydrophobic/hydrophilic interactions between the micellar pseudophase and the hexanitrocobaltate(III) ion.", journal = "Russian Journal of Physical Chemistry A", title = "The reduction of hexanitrocobaltate(III) ion in the presence of hexadecyltrimethylammonium bromide", volume = "82", number = "5", pages = "709-712", doi = "10.1134/S0036024408050038" }
Sovilj, S. P., Vasić, V. M.,& Stojić, D. Lj.. (2008). The reduction of hexanitrocobaltate(III) ion in the presence of hexadecyltrimethylammonium bromide. in Russian Journal of Physical Chemistry A, 82(5), 709-712. https://doi.org/10.1134/S0036024408050038
Sovilj SP, Vasić VM, Stojić DL. The reduction of hexanitrocobaltate(III) ion in the presence of hexadecyltrimethylammonium bromide. in Russian Journal of Physical Chemistry A. 2008;82(5):709-712. doi:10.1134/S0036024408050038 .
Sovilj, Sofija P., Vasić, Vesna M., Stojić, Dragica Lj., "The reduction of hexanitrocobaltate(III) ion in the presence of hexadecyltrimethylammonium bromide" in Russian Journal of Physical Chemistry A, 82, no. 5 (2008):709-712, https://doi.org/10.1134/S0036024408050038 . .