[SO32–], moldm–3       Zero order
 First order
 Second order
ko x 10-3 R2 k1 x 10-3 R2 k2 x 10-2 R2
0.4
0.6
0.8
1.0
1.2
1.5		 1.6
1.8
2.4
2.4
3.0
3.1		 0.576 
0.547
0.554
0.422
0.457
0.485		 8.0
8.6
11.1
12.8
14.8
15.2		 0.960
0.975
0.972
0.968
0.966
0.978		 9.8
15.0
16.1
24.6
27.8
28.1		 0.506
0.625
0.598
0.704
0.659
0.678
[MB+] mg/L Zero order
 First order
 Second order
ko x 10-3 R2 k1 x 10-2 R2 k2 x 10-1 R2
20
30
40
50
60
70		 3.6
3.6
3.8
4.2
4.5
3.3		 0.452
0.634
0.764
0.802
0.832
0.890		 1.67
1.48
1.28
1.40
1.38
0.86		 0.968
0.972
0.993
0.978
0.972
0.962		 2.81
2.78
1.73
1.96
1.89
0.81		 0.705
0.629
0.550
0.528
0.533
0.449
Table 1: Kinetics rates of reaction with respect to MB+ and SO32− .