Hydroxyl Bicarbonate ion

Buxton, G.V.; Greenstock, C.L.; Helman, W.P.; Ross, A.B.
J. Phys. Chem. Ref. Data 17, 513-886 (1988)

Reaction: ·OH + HCO₃^- ® CO₃·^- + H₂O
Solvent: H₂O

k = 8.5 × 10⁶(L mol^-1 s^-1)

Data type: Selected or recommended value

Selected value.

Buxton, G.V.; Wood, N.D.; Dyster, S.
J. Chem. Soc., Faraday Trans. 1 84, 1113-1121 (1988)

Reaction: ·OH + HCO₃^- ® CO₃·^- + H₂O
Solvent: H₂O

Activation energy = 21(kJ mol^-1), Log(A) = 10.793, Temperature range 273 to 473 K
k = 1.0 × 10⁷(L mol^-1 s^-1), T = 292K

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

Product buildup kinetics (studied over a range of carbonate and hydroxide ion concn., pressurized up to 240 psi He).

Buxton, G.V.; Elliot, A.J.
Radiat. Phys. Chem. 27, 241-243 (1986)

Reaction: ·OH + HCO₃^- ® H₂O + CO₃·^-
Solvent: H₂O

pH range 7.0 to 9.4
k = 8.5 × 10⁶(L mol^-1 s^-1)

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

Product buildup kinetics at 600 nm assuming pK_a(H₂CO₃) = 6.34 and 10.37 and k(·OH + CO₃^2-) = 4.2 × 10⁸.

Keene, J.P.; Raef, Y.; Swallow, A.J.
Pulse Radiolysis, Ebert, M.; Keene, J.P.; Swallow, A.J.; Baxendale, J.H. (eds.), Academic Press, New York, 1965, p.99-106

Reaction: ·OH + HCO₃^- ® H₂O + CO₃·^-
Solvent: H₂O

k = 1 × 10⁷(L mol^-1 s^-1), pH = 6.5

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

Product buildup kinetics at 600 nm.