1st order 2nd order
R2a kla R2a k2a h
0.9878 2.34x10-2 0.3578 3.055 0.64
R2b klb R2b k2b h
0.9979 8.22x10-2 0.3204 1.37x10-3 2.88
Table 2: R2 values and rate constants for 500 mg L-1 Cr(III) concentration.