Table 5: Indicating kinetic models applied.

Zero-order Kinetics [10]	W = k1 t Eq 1
First-order Kinetics [10]	ln (100 - W) = ln100 - k2 t   Eq 2
Hixon Crowel’s (erosion model) [10]	(100 –W)1/3   = 1001/3  - k3t  Eq 3
Higuchi’s (diffusion model) [11]	W = k4 t½ Eq 4
Power Law (diffusion/relaxation model) [12]	Mt / M∞ = k5 tn Eq 5