The Scientific World Journal / 2014 / Article / Tab 2

Research Article

Thermodynamic and Spectroscopic Investigation of Interactions between Reactive Red 223 and Reactive Orange 122 Anionic Dyes and Cetyltrimethyl Ammonium Bromide (CTAB) Cationic Surfactant in Aqueous Solution

Table 2

The data of critical micelle concentrations (CMC), enthalpy of micellization (), free energy of micellization (), entropy of micellization (), and degree of dissociation () for aqueous solution of CTAB in the presence of reactive red 223 at different temperatures.


(K)
CMC  
(mM)

(kJmol−1)

(kJmol−1)

(JK−1mol−1)

2980.945.46−15.2669.540.493
3080.875.72−15.7569.720.515
3180.826.06−16.3970.560.532
3280.8156.36−16.6970.270.553