Organic Solutes in Aqueous Solutions

B11 4-Aminobenzoic acid     a. Venkatesvaran, K., Stadlbauer, J.M., Wu, Z., Gillis, H.A. and Walker, D.C.        J. Phys. Chem., 1996, 100, 3564.     b. Stadlbauer, J.M., Miyake, Y., Ng, B.W., Phillips, E.C. and Walker, D.C.         Radiat. Phys. Chem., 1986, 28, 95. Reaction: +H3N- C6H4COOH + Mu ® ?                 pH = 1 – 2                 H2N- C6H4COOH+ Mu ® ?                   pH ~ 4                 H2N- C6H4COO- + Mu ® ?                    pH ~ 10 Type of reaction: predominantly addition at unsubstituted ring sites C(2) and C(3)  kM = (1.3 ± 0.3) x 1010 dm3mol-1s-1                     pH = 1 – 2  kM = (7 ± 3) x 109 dm3mol-1s-1                       pH = 4  kM = (1.15 ± 0.25) x 1010 dm3mol-1s-1             pH = 10 kH – unknown KIE – not available

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Table A - Inorganic Solutes in Aqueous Solutions
Table B - Organic Solutes in Aqueous Solutions
Table C - Solutes Unreactive Towards Muonium Atoms in Aqueous Solutions
Table D - Inorganic and Organic Solutes in Nonaqueous Solutions
Table E - Early Muonium Rate Constants
Table F - (P_M) and (P_D) fractions

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