The redox behavior data for thallous chloride using 0.1M HNO3 in absence and presence of polymer di ethyl amino ethyl cellulose were evaluated cyclic voltammetrically. Cyclic voltammetry of thallous chloride (TlCl) was achieved using glassy carbon electrode and in presence of di ethyl amino ethyl cellulose (DEAEC) as natural polymer. The cyclic voltammetry and the kinetic data for the redox reactions of TlCl was studied and their values were discussed. The thermodynamic stability constants and Gibbs free energies of interaction between TlCl and DEAEC were evaluated and their values were discussed.