CH₄⁺

Methane ion
Flags: RATE12
Empirical: CH₄⁺
Mass: 16 amu
Heat of formation: 1140.0 kJ mol^-1
Added to system: 2003-05-06 06:43:21

Reactions: Formation | Destruction

11 CH₄⁺ formation reactions

	Reaction	α	β	γ	T_l - T_u (K)
1	CH₄ + CO⁺ → CO + CH₄⁺	7.93e-10	0.00	0.00	10 - 41000
2	CH₄ + CO₂⁺ → CO₂ + CH₄⁺	5.50e-10	0.00	0.00	10 - 41000
3	H⁺ + CH₄ → CH₄⁺ + H	1.50e-9	0.00	0.00	10 - 41000
4	H₂⁺ + CH₄ → CH₄⁺ + H₂	1.40e-9	0.00	0.00	10 - 41000
5	He⁺ + CH₄ → CH₄⁺ + He	5.10e-11	0.00	0.00	10 - 41000
6	N⁺ + CH₄ → CH₄⁺ + N	2.80e-11	0.00	0.00	10 - 41000
7	O⁺ + CH₄ → CH₄⁺ + O	8.90e-10	0.00	0.00	10 - 41000
8	CH₃⁺ + HCO → CO + CH₄⁺	4.40e-10	-0.50	0.00	10 - 41000
9	H₃⁺ + CH₃ → CH₄⁺ + H₂	2.10e-9	0.00	0.00	10 - 41000
10	H + CH₅⁺ → CH₄⁺ + H₂	1.50e-10	0.00	0.00	10 - 41000
11	CH₄ + PHOTON → CH₄⁺ + e^-	6.80e-12	0.00	3.90	10 - 41000

	Reaction	α	β	γ	T_l - T_u (K)
1	CH₄⁺ + C₂H₂ → C₂H₂⁺ + CH₄	1.13e-9	0.00	0.00	10 - 41000
2	CH₄⁺ + C₂H₄ → C₂H₄⁺ + CH₄	1.38e-9	0.00	0.00	10 - 41000
3	CH₄⁺ + CH₃OH → CH₃OH⁺ + CH₄	1.80e-9	-0.50	0.00	10 - 41000
4	CH₄⁺ + H₂CO → H₂CO⁺ + CH₄	1.62e-9	-0.50	0.00	10 - 41000
5	CH₄⁺ + H₂S → H₂S⁺ + CH₄	9.45e-10	-0.50	0.00	10 - 41000
6	CH₄⁺ + NH₃ → NH₃⁺ + CH₄	1.65e-9	-0.50	0.00	10 - 41000
7	CH₄⁺ + O₂ → O₂⁺ + CH₄	3.90e-10	0.00	0.00	10 - 41000
8	CH₄⁺ + OCS → OCS⁺ + CH₄	4.20e-10	0.00	0.00	10 - 41000
9	CH₄⁺ + e^- → CH₂ + H + H	1.75e-7	-0.50	0.00	10 - 300
10	CH₄⁺ + e^- → CH₃ + H	1.75e-7	-0.50	0.00	10 - 300
11	CH₄⁺ + C₂H₂ → C₂H₃⁺ + CH₃	1.23e-9	0.00	0.00	10 - 41000
12	CH₄⁺ + C₂H₂ → CH₂CCH⁺ + H₂ + H	1.51e-10	0.00	0.00	10 - 41000
13	CH₄⁺ + C₂H₄ → C₂H₅⁺ + CH₃	4.23e-10	0.00	0.00	10 - 41000
14	CH₄⁺ + C₂H₅CN → C₂H₅CNH⁺ + CH₃	4.00e-9	-0.50	0.00	10 - 41000
15	CH₄⁺ + CH₃OH → CH₃OH₂⁺ + CH₃	1.20e-9	-0.50	0.00	10 - 41000
16	CH₄⁺ + CH₄ → CH₅⁺ + CH₃	1.50e-9	0.00	0.00	10 - 41000
17	CH₄⁺ + CO₂ → HCO₂⁺ + CH₃	1.20e-9	0.00	0.00	10 - 41000
18	CH₄⁺ + CO → HCO⁺ + CH₃	1.40e-9	0.00	0.00	10 - 41000
19	CH₄⁺ + H₂CO → H₃CO⁺ + CH₃	1.98e-9	-0.50	0.00	10 - 41000
20	CH₄⁺ + H₂O → H₃O⁺ + CH₃	2.60e-9	-0.50	0.00	10 - 41000
21	CH₄⁺ + H₂S → H₃S⁺ + CH₃	1.16e-9	-0.50	0.00	10 - 41000
22	CH₄⁺ + NH₃ → NH₄⁺ + CH₃	1.15e-9	-0.50	0.00	10 - 41000
23	CH₄⁺ + OCS → HOCS⁺ + CH₃	9.80e-10	0.00	0.00	10 - 41000
24	H₂ + CH₄⁺ → CH₅⁺ + H	4.89e-11	-0.14	-36.10	15 - 41000
25	H + CH₄⁺ → CH₃⁺ + H₂	1.00e-11	0.00	0.00	10 - 41000
26	O + CH₄⁺ → OH + CH₃⁺	1.00e-9	0.00	0.00	10 - 41000
27	CH₄⁺ + PHOTON → CH₂⁺ + H₂	2.27e-10	0.00	2.70	10 - 41000
28	CH₄⁺ + PHOTON → CH₃⁺ + H	5.33e-11	0.00	2.70	10 - 41000

Variation of log fractional abundance (relative to H₂) with log time (years) in a dark cloud model. Ref. RATE12 paper.

CH4+

CH₄⁺