H₂O⁺ + H₂O → H₃O⁺ + OH

Ion-neutral reaction

Alpha: 2.10 × 10^-9
Beta: -0.50
Gamma: 0.00
Temperature range: 10 - 41000 K

Accuracy: < 25%
Source: Measured

Reference: Huntress, W.T. and Pinizzotto, R.F., J. Chem. Phys., 59, 4742 (1973).
DOI: 10.1063/1.1680687