The equilibria of the complex formation between AuCl4-n(OH)n- and I- was studied spectrophotometrically in aqueous solutions containing KI:Au(III)≤2 in the acidity range from 1 M HCl to pH 7 at 25 ºC. From the hydrogen ion and Cl- ion dependence of the absorption spectra, it was found that AuCl2I2- and Au(OH)2I2- complexes were formed. The equilibrium constants of complex formation were determined.
Ravnoteže obrazovanja kompleksa između AuCl4-n(OH)n i KI ispitivane su spektrofotometrijski u vodenim rastvorima pri odnosu koncentracija KI:Au(III) ≤ 2 u oblasti kiselosti od 1 M HCl do pH 7 na 25 ºC. Iz promene apsorpcionih spektara u zavisnosti od kiselosti sredine i koncentracije Cl- jona nađeno je da se obrazuju kompleksi AuCl2I2- i Au(OH)2I2-. Određene su konstante ravnoteže odgovarajućih reakcija. PR Projekat Ministarstva nauke Republike Srbije.
Keywords:
Au(III) / iodine / complexes / aqueous solutions
Source:
Journal of the Serbian Chemical Society, 2000, 65, 5-6, 345-352
TY - JOUR
AU - Vasić, Vesna
AU - Premović, Suzana
AU - Čakar, Mira
AU - Radak, Bojan B.
AU - Milovanović, Gordana A.
PY - 2000
UR - http://farfar.pharmacy.bg.ac.rs/handle/123456789/257
AB - The equilibria of the complex formation between AuCl4-n(OH)n- and I- was studied spectrophotometrically in aqueous solutions containing KI:Au(III)≤2 in the acidity range from 1 M HCl to pH 7 at 25 ºC. From the hydrogen ion and Cl- ion dependence of the absorption spectra, it was found that AuCl2I2- and Au(OH)2I2- complexes were formed. The equilibrium constants of complex formation were determined.
AB - Ravnoteže obrazovanja kompleksa između AuCl4-n(OH)n i KI ispitivane su spektrofotometrijski u vodenim rastvorima pri odnosu koncentracija KI:Au(III) ≤ 2 u oblasti kiselosti od 1 M HCl do pH 7 na 25 ºC. Iz promene apsorpcionih spektara u zavisnosti od kiselosti sredine i koncentracije Cl- jona nađeno je da se obrazuju kompleksi AuCl2I2- i Au(OH)2I2-. Određene su konstante ravnoteže odgovarajućih reakcija. PR Projekat Ministarstva nauke Republike Srbije.
PB - Srpsko hemijsko društvo, Beograd
T2 - Journal of the Serbian Chemical Society
T1 - Spectrophotometric investigations of the reaction between gold(III) and potassium iodide
T1 - Spektrofotometrijsko ispitivanje reakcije zlata(III) sa kalijum-jodidom
VL - 65
IS - 5-6
SP - 345
EP - 352
ER -
@article{
author = "Vasić, Vesna and Premović, Suzana and Čakar, Mira and Radak, Bojan B. and Milovanović, Gordana A.",
year = "2000",
url = "http://farfar.pharmacy.bg.ac.rs/handle/123456789/257",
abstract = "The equilibria of the complex formation between AuCl4-n(OH)n- and I- was studied spectrophotometrically in aqueous solutions containing KI:Au(III)≤2 in the acidity range from 1 M HCl to pH 7 at 25 ºC. From the hydrogen ion and Cl- ion dependence of the absorption spectra, it was found that AuCl2I2- and Au(OH)2I2- complexes were formed. The equilibrium constants of complex formation were determined., Ravnoteže obrazovanja kompleksa između AuCl4-n(OH)n i KI ispitivane su spektrofotometrijski u vodenim rastvorima pri odnosu koncentracija KI:Au(III) ≤ 2 u oblasti kiselosti od 1 M HCl do pH 7 na 25 ºC. Iz promene apsorpcionih spektara u zavisnosti od kiselosti sredine i koncentracije Cl- jona nađeno je da se obrazuju kompleksi AuCl2I2- i Au(OH)2I2-. Određene su konstante ravnoteže odgovarajućih reakcija. PR Projekat Ministarstva nauke Republike Srbije.",
publisher = "Srpsko hemijsko društvo, Beograd",
journal = "Journal of the Serbian Chemical Society",
title = "Spectrophotometric investigations of the reaction between gold(III) and potassium iodide, Spektrofotometrijsko ispitivanje reakcije zlata(III) sa kalijum-jodidom",
volume = "65",
number = "5-6",
pages = "345-352"
}
Vasić V, Premović S, Čakar M, Radak BB, Milovanović GA. Spektrofotometrijsko ispitivanje reakcije zlata(III) sa kalijum-jodidom. Journal of the Serbian Chemical Society. 2000;65(5-6):345-352
Vasić, V., Premović, S., Čakar, M., Radak, B. B.,& Milovanović, G. A. (2000). Spektrofotometrijsko ispitivanje reakcije zlata(III) sa kalijum-jodidom.
Journal of the Serbian Chemical SocietySrpsko hemijsko društvo, Beograd., 65(5-6), 345-352.
Vasić Vesna, Premović Suzana, Čakar Mira, Radak Bojan B., Milovanović Gordana A., "Spektrofotometrijsko ispitivanje reakcije zlata(III) sa kalijum-jodidom" 65, no. 5-6 (2000):345-352
