New chemical scheme for giant planet thermochemistry - Update of the methanol chemistry and new reduced chemical scheme

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Table B.2

Reactions of the new chemical sub-network of CH₃OH involving a logarithmic dependence with pressure, extracted from Burke et al. (2016).

Reaction	Rate
CH₃ + OH ⇌ HCOH + H₂
CH₃ + OH ⇌ CH₂OH + H
CH₃ + OH ⇌ H + CH₃O
C₂H₃ + O₂ ⇌ CO + CH₃O
C₂H₃ + O₂ ⇌ CO + CH₃O
C₂ H₅ OH ⇌ CH₃ + CH₂OH

Notes. The corresponding reaction rates are expressed with a modified Arrhenius law , with T in Kelvin, E_a ∕R in Kelvin, and n dimensionless. The value A is in s⁻¹ K⁻ⁿ for the thermal dissociation and cm³ molecule⁻¹ s⁻¹ K⁻ⁿ for bimolecular reactions.

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