Kinetics and Mechanism of meso-Tetraphenylporphyrin Iron(III) Chloride Catalysed Oxidation of Indole-3-Acetic Acid by Peroxomonosulphate

Table 3

Effect of [H⁺] concentration on the reaction rate at 303 K.

[H^+] × 10^2 (mol dm^−3)	𝑘obs × 10^4 (s^−1)
8.0	1.22
16.0	1.24
24.0	1.18
32.0	1.29
40.0	1.52

[oxone] = 5.0 × 10⁻⁴ mol dm⁻³; [IAA] = 1.0 × 10⁻² mol dm⁻³; [TPP] = 4.0 × 10⁻⁸ mol dm⁻³, acetonitrile : water = 50 : 50, temperature = 303 K.