Hydroxyl Carbonate ion

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

Reaction: ·OH + CO₃^2- ® OH^- + CO₃·^-
Solvent: H₂O

k = 3.9 × 10⁸(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 + CO₃^2- ® CO₃·^- + OH^-
Solvent: H₂O

Activation energy = 24(kJ mol^-1), Log(A) = 12.825, Temperature range 273 to 473 K
k = 4.0 × 10⁸(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).

Behar, D.; Czapski, G.; Duchovny, I.
J. Phys. Chem. 74, 2206-2210 (1970)

Reaction: ·OH + CO₃^2- ® OH^- + CO₃·^-
Solvent: H₂O

k = 3.7 × 10⁸(L mol^-1 s^-1), pH = 11

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

Product buildup kinetics at 600 nm.

Buxton, G.V.
Trans. Faraday Soc. 65, 2150-2158 (1969)

Reaction: ·OH + CO₃^2- ® OH^- + CO₃·^-
Solvent: H₂O

k = 4.0 × 10⁸(L mol^-1 s^-1), pH = 10.6

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

Product buildup kinetics at 600 nm.

Weeks, J.L.; Rabani, J.
J. Phys. Chem. 70, 2100-2106 (1966)

Reaction: ·OH + CO₃^2- ® OH^- + CO₃·^-
Solvent: H₂O

k = 4.2 × 10⁸(L mol^-1 s^-1), pH = <11.6

Experimental method: Pulse radiolysis
Analytical method: vis-UV absorption
Data type: Derived from fitting to complex mechanism

Product buildup kinetics; k is pH dependent; calcn. is indirect.

Thomas, J.K.
Trans. Faraday Soc. 61, 702-707 (1965)

Reaction: ·OH + CO₃^2- ® OH^- + CO₃·^-
Reference Reaction: ·OH + I^- ®
Solvent: H₂O

k/k_reference = 2.9 × 10^-2
k = 3.2 × 10⁸(L mol^-1 s^-1), k_reference = 1.1 × 10¹⁰(L mol^-1 s^-1), pH = 11

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

Competition kinetics

Thomas, J.K.
Trans. Faraday Soc. 61, 702-707 (1965)

Reaction: ·OH + CO₃^2- ® OH^- + CO₃·^-
Solvent: H₂O

k = 3.5 × 10⁸(L mol^-1 s^-1), pH = 11

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

Product buildup kinetics at 580 nm.