Table III.

Kinetic and Thermodynamic Parameters of IMD Decomposition in Solid State

T (°C)/K	Kinetic parameters
	106  k ± Δk, s−1	−r	N	t 0.5 [days]
RH 76.4%
70/343	0.734 ± 0.088	0.991	9	40.1
75/348	1.06 ± 0.13	0.991	9	30.8
80/353	2.23 ± 0.27	0.991	9	17.3
85/358	3.59 ± 0.47	0.994	7	16.7
90/363	4.88 ± 0.41	0.995	10	7.3
20a/293a	(1.36 ± 0.16) × 10−9
Statistical evaluation ln k i = f(1/T)		Thermodynamic parameters
a ± Δa = −12,550 ± 2,827; SDa = 1018		E a = 104 ± 24 kJ/mol
b ± Δb = 22 ± 8; SDb = 2.8		ΔH ≠ = 101 ± 25 kJ/mol
r = −0.990		ΔS ≠ = −58 ± 177 J/(K mol]
RH 0%
90/363	0.309 ± 0.033	0.991	10	84.4
95/368	0.653 ± 0.048	0.996	10	37.8
100/373	1.02 ± 0.088	0.993	11	20.9
105/378	2.01 ± 0.10	0.997	10	16.2
110/383	4.88 ± 0.39	0.995	10	4.9
20a/293a	(1.63 ± 0.23) × 10−12
Statistical evaluation ln k i = f(1/T)		Thermodynamic parameters
a ± Δa = −18,417 ± 3,463; SDa = 1247		E a = 153 ± 28 kJ/mol
b ± Δb = 35 ± 9; SDb = 3.3		ΔH ≠ = 150 ± 31 kJ/mol
r = −0.993		ΔS ≠ = 51 ± 167 J/(K mol)

SD _a standard deviation of slope regression, SD _b standard deviation of value b, r coefficient of linear correlation

^aValue was calculated from Arrhenius equation; for RH 76.4% lnk _i = (−12,550 ± 2,827) · (1/T [K]) + (22 ± 8) and for RH 0% lnk _i = (−18,417 ± 3,463) · (1/T [K]) + (35 ± 9)