Naslov
Spectroscopic Studies of Interaction Between Xylenol Orange and Cationic Surfactant in Aqueous Solution

Autori
Gojmerac Ivšić, Astrid ; Jović, Ozren ; Matešić- Puač, Ružica ; Hrenar, Tomica

Izvornik
Journal of Molecular Structure (0022-2860) 929 (2009), 1/3; 149-153

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
xylenol orange; cationic surfactant; spectrophotometry; ATR-FTIR spectroscopy

Sažetak
The interaction of the triphenylmethane dye xylenol orange with cationic surfactants cetyltrimethylammonium bromide and cetylpyridinium chloride was studied by absorption spectrophotometry and principal component analysis of infrared spectra. Upon the addition of surfactants the yellow colour of the acidic xylenol orange solution changed to purple-red. Changes in the absorption spectra of the mixture indicate strong interactions between dye and surfactants. These interactions were also monitored using ATR spectroscopy and the most prominent changes were observed in the vibration of the carbonyl group. The comparison of principal component loadings obtained from spectral data matrices for xylenol orange and mixtures of xylenol orange with surfactants revealed differences in infrared spectra caused only by the interaction of the surfactants with the dye.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA