Organic Solutes in Aqueous Solutions

B16

B16

Benzoic acid

Reaction: C6H5COOH + Mu ® MuC6H5COOH

Type of reaction: addition into benzene ring with Mu in ortho, meta, para position to COOH solution

         Venkateswaran, K., Stadlbauer, J.M., Wu, Z., Gillis, H.A. and Walker, D.C.
 
J. Phys. Chem., 1996, 100, 3569.

kMu = (2.5 ± 0.5) x 1010 dm3mol-1s-1                          pH = 1- 2

kMu = (8 ± 3) x 109 dm3mol-1s-1                                 pH ~ 7 (natural)

kMu = (8 ± 3) x 109 dm3mol-1s-1                                 pH ~ 10

KIE = kM / kH = 2.5 x 1010 / 9.2 x 108 = 27                 pH = 1-2

KIE = kM / kH = 8 x 109 / 9.2 x 108 = 8.7                    pH ~ 7

kH = 9.2 x 108 dm3mol-1s-1  at  pH = 3

selected value from: www.rcdc.nd.edu.edu/compilations/Hatom/H.HTM

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