Hydrated electron Hydrogen arsenate(V) ion

Klaning, U.K.; Bielski, B.H.J.; Sehested, K.
Inorg. Chem. 28, 2717-2724 (1989)

Reaction: e_aq^- + HAsO₄^2- ® AsO₃^2- + OH^-
Solvent: H₂O

k ~ 2 × 10⁸(L mol^-1 s^-1), ionic strength = 0.1, pH = 9, T = 296K

Experimental method: Pulse radiolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly

Decay kinetics at 700 nm in soln. contg. (1-10) × 10^-3 mol L^-1 arsenate ion

Anbar, M.; Hart, E.J.
Adv. Chem. Ser. 81, 79-94 (1968)

Reaction: e_aq^- + HAsO₄^2- ® AsO₃^2- + OH^-
Solvent: H₂O

k = 1.9 × 10⁸(L mol^-1 s^-1), ionic strength ®0, pH = 11.0
k = 2.0 × 10⁸(L mol^-1 s^-1), ionic strength = 0.001

Experimental method: Pulse radiolysis
Analytical method: vis-UV absorption
Data type: Absolute value measured directly

Decay kinetics; counterion Na⁺; pK = 2.25, 6.77, 11.6.