The quality of aqueous dispersions of graphitic carbon black is investigated using rheological and conductivity measurements. Effectiveness of three non-ionic polymeric dispersants is investigated namely Triton X100, Triton X405, and Lugalvan BNO12. The adsorption isotherms of the dispersants/solid surface system are constructed. Experimentally determined curves of relative viscosity as a function of effective volume fraction Φ′ are compared with the theoretical curves calculated using Krieger-Dougherty equation. Relative conductivity values for the dispersing systems are compared to evaluate the structure. The experimental investigation concludes that aromaticity of dispersants plays an important role in producing good quality dispersions of graphitic carbon black.