Kinetics and Mechanism of Electron Transfer to Heptavalent Manganese by DL-Aspartic Acid in Alkaline Aqueous and Micellar Media
Table 2
Activation and thermodynamic parameters for the oxidation of DL-Aspartic acid by alkaline KMnO4 with respect to the slow step of the reaction (Scheme 1).
Effect of temperature with respect to the slow step of Scheme 1 [] = 0.01 mol dm−3, [Asp] = 0.004 mol dm−3
Temperature (K)
103k (s−1)
298
0.24
0.99
303
0.29
0.99
308
0.34
0.99
313
0.39
0.98
318
0.44
0.99
Activation parameters
Value
(kJ mol−1)
23.8
(kJ mol−1)
5.6 0.3
(JK−1 mol−1)
−227.6 1.1
(kJ mol−1) (298 K)
73.4
Effect of temperature on equilibrium constants and
