Perborate Oxidation of Substituted 5-Oxoacids in Aqueous Acetic Acid Medium: A Kinetic and Mechanistic Study

Table 1

Effect of varying [substrate] on the rate of perborate oxidation of 5-oxoacids at 313 ± 0.1 K. {[Perborate] = 0.001 mol dm⁻³; [H₂SO₄] = 2.0 mol mol⁻³; HOAc-H₂O = 1 : 1% (v/v)}.

[5-oxo acid] (mol dm^−3)	10^5×𝑘obs (s^−1)^a
	p-OCH3	p-CH3	p-C6H5	−H	p-Cl	p-Br	m-NO2
0.005	95.91	13.44	9.43	6.36	2.14	1.77	0.77
0.01	191.9	26.85	21.67	12.78	4.25	2.15	1.52
0.015	287.9	40.33	29.98	19.20	6.40	4.43	2.34
0.02	383.7	53.71	36.71	25.59	8.51	5.74	3.05
0.03	575.8	80.59	60.76	38.14	12.78	8.92	4.56
0.04	767.7	107.5	124.91	51.13	17.15	12.53	6.05
0.06	1152	161.3	142.24	76.75	25.59	17.53	9.10

aMean of duplicate experiments.