Compound

Observed rate constant

(day-1)

Arrhenius Parameters

Activation Energy, Ea

(kJ/mol)

Frequency factor

ln(A)

25° C

30° C

40° C

a -endosulfan

0.210 (0.267)

0.465 (0.316)

0.546

(0.627)

44.71+0.513

(45.50+0.452)

16.671

(16.981)

b -Endosulfan

0.224 (0.278)

0.488 (0.470)

0.760 (0.821)

59.49+0.618

(54.49+0.5420)

22.652

(20.765)

Note: The numbers in parentheses represent the observed data under non-autoclaved condition.

Table 5: Summary of Arrhenius Parameters