The essence of the Cox-Merz rule is the relationship between the linear (oscillatory) and nonlinear (steady state) viscosities (or their equivalent expressions) of a particular material. However, the practical application of the CoxeMerz rule lies in predicting steady shear rheological properties from linear oscillatory shear measurements. This valuable contribution, especially for industry, is based on oscillatory tests are addition, with an increase in concentration occurs at lower shear rate or frequency, suggesting that the formation of aggregates at high concentration is easier than at low concentration.