Non-Isothermal Degradation Kinetics of CaCO₃ from Different Origin

Table 5

The shape of the most probable mechanism function g(α), slope and the correlation coefficient of linear regression 𝑅² for both the samples studied.

Mechanism	Shape of g(𝛼); function	Reagent-grade CaCO3		In situ produced CaCO3
		Slope	R ^2	Slope	R ^2
F2/3, R3	1 − (1−𝛼)^1/3	−1.0086	0.9998	−1.0102	0.9993
D3	[1 − (1−𝛼)^1/3]^2	−2.0172	0.9995	−1.8986	0.9989
D4	1 − 2𝛼/3 − (1−𝛼)^2/3	−0.7639	0.9991	−0.7263	0.9992