H₂CO

Formaldehyde, Methanal
Flags: Detected, RATE12
Empirical: CH₂O
Mass: 30 amu
Dipole moment: 2.330 D
Heat of formation: -104.7 kJ mol^-1
Added to system: 2003-04-28 18:00:51

Reactions: Formation | Destruction

91 H₂CO formation reactions

	Reaction	α	β	γ	T_l - T_u (K)
1	C^- + H₂O → H₂CO + e^-	5.00e-10	0.00	0.00	10 - 41000
2	CH₂ + O^- → H₂CO + e^-	5.00e-10	0.00	0.00	10 - 41000
3	CH + OH^- → H₂CO + e^-	5.00e-10	0.00	0.00	10 - 41000
4	H^- + HCO → H₂CO + e^-	1.00e-9	0.00	0.00	10 - 41000
5	CH₂ + H₂CO⁺ → H₂CO + CH₂⁺	4.30e-10	0.00	0.00	10 - 41000
6	CH + H₂CO⁺ → H₂CO + CH⁺	3.10e-10	-0.50	0.00	10 - 41000
7	H₂CO⁺ + Fe → Fe⁺ + H₂CO	1.90e-9	0.00	0.00	10 - 41000
8	H₂CO⁺ + S → S⁺ + H₂CO	5.50e-10	0.00	0.00	10 - 41000
9	HCO + H₂CO⁺ → H₂CO + HCO⁺	3.60e-10	-0.50	0.00	10 - 41000
10	Mg + H₂CO⁺ → H₂CO + Mg⁺	2.90e-9	0.00	0.00	10 - 41000
11	NH₃ + H₂CO⁺ → H₂CO + NH₃⁺	4.25e-10	-0.50	0.00	10 - 41000
12	NO + H₂CO⁺ → H₂CO + NO⁺	7.80e-10	0.00	0.00	10 - 41000
13	Na + H₂CO⁺ → H₂CO + Na⁺	2.60e-9	0.00	0.00	10 - 41000
14	Si + H₂CO⁺ → H₂CO + Si⁺	2.00e-9	0.00	0.00	10 - 41000
15	CH₃OCH₃ + CRPHOT → H₂CO + CH₄	1.30e-17	0.00	857.00	10 - 41000
16	CH₃OH + CRPHOT → H₂CO + H₂	1.30e-17	0.00	1584.00	10 - 41000
17	C₂H₅OH⁺ + e^- → H₂CO + CH₄	1.50e-7	-0.50	0.00	10 - 300
18	CH₃CHOH⁺ + e^- → CH₂ + H₂CO + H	8.47e-7	-0.74	0.00	10 - 1000
19	CH₃CHOH⁺ + e^- → H₂CO + CH₃	8.47e-7	-0.74	0.00	10 - 1000
20	CH₃OH⁺ + e^- → H₂CO + H + H	8.61e-7	-0.66	0.00	10 - 1000
21	CH₃OH₂⁺ + e^- → H₂CO + H₂ + H	8.90e-8	-0.59	0.00	10 - 300
22	H₃CO⁺ + e^- → H₂CO + H	2.17e-7	-0.78	0.00	10 - 1000
23	CH⁺ + CH₃OH → H₂CO + CH₃⁺	1.45e-9	-0.50	0.00	10 - 41000
24	CH₂ + SiO⁺ → H₂CO + Si⁺	8.20e-10	0.00	0.00	10 - 41000
25	CH₃⁺ + CH₃CHO → H₂CO + C₂H₅⁺	3.03e-9	-0.50	0.00	10 - 41000
26	CH₃OH + S₂⁺ → H₂S₂⁺ + H₂CO	7.83e-10	-0.50	0.00	10 - 41000
27	CH + H₃CO⁺ → H₂CO + CH₂⁺	6.20e-10	-0.50	0.00	10 - 41000
28	H₂O + H₃CO⁺ → H₂CO + H₃O⁺	2.30e-10	-0.50	0.00	10 - 41000
29	H₃⁺ + CH₃CHO → CH₅⁺ + H₂CO	8.28e-10	-0.50	0.00	10 - 41000
30	H₃CO⁺ + CH₃OH → CH₃OH₂⁺ + H₂CO	1.90e-9	-0.50	0.00	10 - 41000
31	H₃CO⁺ + H₂S → H₃S⁺ + H₂CO	5.00e-10	-0.50	0.00	10 - 41000
32	H₃CO⁺ + HC₄H → C₄H₃⁺ + H₂CO	9.30e-10	0.00	0.00	10 - 41000
33	H₃CO⁺ + HCOOH → HCOOH₂⁺ + H₂CO	2.00e-9	-0.50	0.00	10 - 41000
34	HCN + H₃CO⁺ → H₂CO + HCNH⁺	1.30e-9	-0.50	0.00	10 - 41000
35	HNC + H₃CO⁺ → H₂CO + HCNH⁺	1.30e-9	-0.50	0.00	10 - 41000
36	He⁺ + CH₃OCH₃ → H₂CO + CH₃⁺ + He + H	2.00e-9	-0.50	0.00	10 - 41000
37	NH₂ + H₃CO⁺ → H₂CO + NH₃⁺	8.80e-10	-0.50	0.00	10 - 41000
38	NH₃ + H₃CO⁺ → H₂CO + NH₄⁺	2.30e-9	-0.50	0.00	10 - 41000
39	Na + H₃CO⁺ → H₂CO + Na⁺ + H	2.60e-9	0.00	0.00	10 - 41000
40	O₂⁺ + CH₂CCH₂ → CH₂CO⁺ + H₂CO	2.60e-11	0.00	0.00	10 - 41000
41	O₂⁺ + CH₃CHCH₂ → CH₃CHO⁺ + H₂CO	1.50e-11	0.00	0.00	10 - 41000
42	O + SiCH₂⁺ → H₂CO + Si⁺	6.00e-10	0.00	0.00	10 - 41000
43	SO⁺ + C₂H₄ → H₂CS⁺ + H₂CO	2.20e-10	0.00	0.00	10 - 41000
44	C^- + H₂CO⁺ → C + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
45	C₁₀^- + H₂CO⁺ → C₁₀ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
46	C₁₀H^- + H₂CO⁺ → C₁₀H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
47	C₂^- + H₂CO⁺ → C₂ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
48	C₂H^- + H₂CO⁺ → C₂H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
49	C₃^- + H₂CO⁺ → C₃ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
50	C₃H^- + H₂CO⁺ → C₃H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
51	C₃N^- + H₂CO⁺ → C₃N + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
52	C₄^- + H₂CO⁺ → C₄ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
53	C₄H^- + H₂CO⁺ → C₄H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
54	C₅^- + H₂CO⁺ → C₅ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
55	C₅H^- + H₂CO⁺ → C₅H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
56	C₅N^- + H₂CO⁺ → C₅N + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
57	C₆^- + H₂CO⁺ → C₆ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
58	C₆H^- + H₂CO⁺ → C₆H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
59	C₇^- + H₂CO⁺ → C₇ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
60	C₇H^- + H₂CO⁺ → C₇H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
61	C₈^- + H₂CO⁺ → C₈ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
62	C₈H^- + H₂CO⁺ → C₈H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
63	C₉^- + H₂CO⁺ → C₉ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
64	C₉H^- + H₂CO⁺ → C₉H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
65	CH^- + H₂CO⁺ → CH + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
66	CN^- + H₂CO⁺ → CN + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
67	H^- + H₂CO⁺ → H + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
68	O^- + H₂CO⁺ → O + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
69	O₂^- + H₂CO⁺ → O₂ + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
70	OH^- + H₂CO⁺ → OH + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
71	S^- + H₂CO⁺ → S + H₂CO	7.51e-8	-0.50	0.00	10 - 41000
72	C₂H₃ + O₂ → H₂CO + HCO	8.87e-12	-0.73	22.70	200 - 362
73	CH₂ + NO₂ → H₂CO + NO	6.91e-11	0.00	0.00	295 - 295
74	CH₂ + NO → H₂CO + N	2.70e-12	0.00	3500.00	116 - 300
75	CH₂ + O₂ → H₂CO + O	3.65e-11	-3.30	1443.00	1000 - 1828
76	CH₂ + OH → H₂CO + H	3.00e-11	0.00	0.00	10 - 2500
77	CH₃ + NO₂ → H₂CO + HNO	5.41e-12	0.00	0.00	298 - 298
78	CH₃ + O₂ → H₂CO + OH	5.64e-13	0.00	4500.00	298 - 3000
79	CH₃ + O → H₂CO + H	1.30e-10	0.00	0.00	10 - 2500
80	CH₃ + OH → H₂CO + H₂	1.70e-12	0.00	0.00	700 - 700
81	CH₃CHCH₂ + OH → H₂CO + C₂H₅	2.08e-11	-2.03	170.00	58 - 293
82	HCO + HCO → H₂CO + CO	3.00e-11	0.00	0.00	300 - 2500
83	HCO + HNO → H₂CO + NO	1.00e-12	0.00	1000.00	300 - 2500
84	HCO + O₂H → O₂ + H₂CO	5.00e-11	0.00	0.00	300 - 2500
85	O + C₂H₄ → H₂CO + CH₂	4.20e-11	0.00	2520.00	226 - 2500
86	O + C₂H₅ → H₂CO + CH₃	2.67e-11	0.00	0.00	10 - 2500
87	CH₃OCH₃ + PHOTON → H₂CO + CH₄	1.50e-9	0.00	1.60	10 - 41000
88	CH₃OH + PHOTON → H₂CO + H₂	7.00e-10	0.00	2.30	10 - 41000
89	HCOOCH₃ + PHOTON → H₂CO + H₂CO	1.38e-9	0.00	1.70	10 - 41000
90	HCOOCH₃ + PHOTON → H₂CO + H₂CO	1.38e-9	0.00	1.70	10 - 41000
91	H₂CO⁺ + e^- → H₂CO + PHOTON	1.10e-10	-0.70	0.00	10 - 300

	Reaction	α	β	γ	T_l - T_u (K)
1	C⁺ + H₂CO → H₂CO⁺ + C	7.80e-10	-0.50	0.00	10 - 41000
2	C₂H₂⁺ + H₂CO → H₂CO⁺ + C₂H₂	8.60e-10	-0.50	0.00	10 - 41000
3	CH₄⁺ + H₂CO → H₂CO⁺ + CH₄	1.62e-9	-0.50	0.00	10 - 41000
4	CN⁺ + H₂CO → H₂CO⁺ + CN	5.20e-10	-0.50	0.00	10 - 41000
5	CO⁺ + H₂CO → H₂CO⁺ + CO	1.35e-9	-0.50	0.00	10 - 41000
6	H⁺ + H₂CO → H₂CO⁺ + H	2.96e-9	-0.50	0.00	10 - 300
7	H₂⁺ + H₂CO → H₂CO⁺ + H₂	1.40e-9	-0.50	0.00	10 - 41000
8	H₂CO + O₂⁺ → O₂ + H₂CO⁺	2.07e-9	-0.50	0.00	10 - 41000
9	H₂O⁺ + H₂CO → H₂CO⁺ + H₂O	1.41e-9	-0.50	0.00	10 - 41000
10	He⁺ + H₂CO → H₂CO⁺ + He	9.69e-10	-0.50	0.00	10 - 300
11	N⁺ + H₂CO → H₂CO⁺ + N	1.88e-9	-0.50	0.00	10 - 41000
12	N₂⁺ + H₂CO → H₂CO⁺ + N₂	3.77e-10	-0.50	0.00	10 - 41000
13	NH⁺ + H₂CO → H₂CO⁺ + NH	9.90e-10	-0.50	0.00	10 - 41000
14	O⁺ + H₂CO → H₂CO⁺ + O	2.10e-9	-0.50	0.00	10 - 41000
15	OH⁺ + H₂CO → H₂CO⁺ + OH	7.44e-10	-0.50	0.00	10 - 41000
16	H₂CO + CRPHOT → CO + H₂	1.30e-17	0.00	1329.50	10 - 41000
17	C⁺ + H₂CO → CO + CH₂⁺	2.34e-9	-0.50	0.00	10 - 41000
18	C⁺ + H₂CO → HCO⁺ + CH	7.80e-10	-0.50	0.00	10 - 41000
19	C₂H⁺ + H₂CO → H₃CO⁺ + C₂	1.10e-9	-0.50	0.00	10 - 41000
20	C₂H₅⁺ + H₂CO → H₃CO⁺ + C₂H₄	3.10e-9	-0.50	0.00	10 - 41000
21	CH⁺ + H₂CO → CH₂CO⁺ + H	3.20e-10	-0.50	0.00	10 - 41000
22	CH⁺ + H₂CO → CO + CH₃⁺	9.60e-10	-0.50	0.00	10 - 41000
23	CH⁺ + H₂CO → H₃CO⁺ + C	9.60e-10	-0.50	0.00	10 - 41000
24	CH⁺ + H₂CO → HCO⁺ + CH₂	9.60e-10	-0.50	0.00	10 - 41000
25	CH₂⁺ + H₂CO → CH₂CO⁺ + H₂	1.65e-10	-0.50	0.00	10 - 41000
26	CH₂⁺ + H₂CO → CH₃CO⁺ + H	3.30e-10	-0.50	0.00	10 - 41000
27	CH₂⁺ + H₂CO → HCO⁺ + CH₃	2.81e-9	-0.50	0.00	10 - 41000
28	CH₃⁺ + H₂CO → HCO⁺ + CH₄	1.60e-9	-0.50	0.00	10 - 41000
29	CH₄⁺ + H₂CO → H₃CO⁺ + CH₃	1.98e-9	-0.50	0.00	10 - 41000
30	CH₅⁺ + H₂CO → H₃CO⁺ + CH₄	4.50e-9	-0.50	0.00	10 - 41000
31	CN⁺ + H₂CO → HCO⁺ + HCN	5.20e-10	-0.50	0.00	10 - 41000
32	CO⁺ + H₂CO → HCO⁺ + HCO	1.65e-9	-0.50	0.00	10 - 41000
33	H⁺ + H₂CO → CO⁺ + H₂ + H	1.06e-9	-0.50	0.00	10 - 41000
34	H⁺ + H₂CO → HCO⁺ + H₂	3.57e-9	-0.50	0.00	10 - 41000
35	H₂⁺ + H₂CO → HCO⁺ + H₂ + H	1.40e-9	-0.50	0.00	10 - 41000
36	H₂CO⁺ + H₂CO → H₃CO⁺ + HCO	3.20e-9	-0.50	0.00	10 - 41000
37	H₂CO + C₂H₅OH₂⁺ → CH₃COCH₄⁺ + H₂O	1.70e-11	-0.50	0.00	10 - 300
38	H₂CO + CCl⁺ → H₂CCl⁺ + CO	5.30e-10	-0.50	0.00	10 - 41000
39	H₂CO + CH₃COCH₃⁺ → CH₃COCH₄⁺ + HCO	2.00e-10	-0.50	0.00	10 - 41000
40	H₂CO + CH₃OH₂⁺ → CH₃CHOH⁺ + H₂O	2.10e-11	-0.50	0.00	10 - 41000
41	H₂CO + CH₃OH₂⁺ → H₅C₂O₂⁺ + H₂	2.10e-11	-0.50	0.00	10 - 41000
42	H₂CO + H₃S⁺ → H₂S + H₃CO⁺	2.20e-9	-0.50	0.00	10 - 41000
43	H₂CO + HNO⁺ → H₃CO⁺ + NO	1.00e-9	-0.50	0.00	10 - 41000
44	H₂CO + O₂⁺ → O₂ + HCO⁺ + H	2.30e-10	-0.50	0.00	10 - 41000
45	H₂CO + O₂H⁺ → O₂ + H₃CO⁺	9.80e-10	-0.50	0.00	10 - 41000
46	H₂CO + S⁺ → H₂S⁺ + CO	3.35e-10	-0.50	0.00	10 - 41000
47	H₂CO + S⁺ → HS + HCO⁺	3.35e-10	-0.50	0.00	10 - 41000
48	H₂O⁺ + H₂CO → H₃CO⁺ + OH	6.62e-10	-0.50	0.00	10 - 41000
49	H₃⁺ + H₂CO → H₃CO⁺ + H₂	6.30e-9	-0.50	0.00	10 - 41000
50	H₃O⁺ + H₂CO → H₃CO⁺ + H₂O	3.40e-9	-0.50	0.00	10 - 41000
51	HCN⁺ + H₂CO → H₃CO⁺ + CN	1.00e-9	-0.50	0.00	10 - 41000
52	HCNH⁺ + H₂CO → H₃CO⁺ + HCN	1.05e-9	-0.50	0.00	10 - 41000
53	HCNH⁺ + H₂CO → H₃CO⁺ + HNC	1.05e-9	-0.50	0.00	10 - 41000
54	HCO⁺ + H₂CO → H₃CO⁺ + CO	3.30e-9	-0.50	0.00	10 - 41000
55	He⁺ + H₂CO → CO⁺ + He + H₂	1.88e-9	-0.50	0.00	10 - 41000
56	He⁺ + H₂CO → HCO⁺ + He + H	1.14e-9	-0.50	0.00	10 - 41000
57	He⁺ + H₂CO → O + CH₂⁺ + He	1.71e-9	-0.50	0.00	10 - 41000
58	N⁺ + H₂CO → HCO⁺ + NH	7.25e-10	-0.50	0.00	10 - 41000
59	N⁺ + H₂CO → NO⁺ + CH₂	2.90e-10	-0.50	0.00	10 - 41000
60	N₂⁺ + H₂CO → HCO⁺ + N₂ + H	2.52e-9	-0.50	0.00	10 - 41000
61	HN₂⁺ + H₂CO → H₃CO⁺ + N₂	3.30e-9	-0.50	0.00	10 - 41000
62	NH⁺ + H₂CO → H₃CO⁺ + N	4.95e-10	-0.50	0.00	10 - 41000
63	NH⁺ + H₂CO → HCO⁺ + NH₂	1.82e-9	-0.50	0.00	10 - 41000
64	NH₂⁺ + H₂CO → H₃CO⁺ + NH	2.24e-9	-0.50	0.00	10 - 41000
65	NH₂⁺ + H₂CO → HCO + NH₃⁺	5.60e-10	-0.50	0.00	10 - 41000
66	NH₃⁺ + H₂CO → HCO + NH₄⁺	1.10e-9	-0.50	0.00	10 - 41000
67	O⁺ + H₂CO → HCO⁺ + OH	1.40e-9	-0.50	0.00	10 - 41000
68	OH⁺ + H₂CO → H₃CO⁺ + O	1.12e-9	-0.50	0.00	10 - 41000
69	CH₂ + H₂CO → HCO + CH₃	3.30e-13	0.00	3270.00	109 - 300
70	CH₃ + H₂CO → HCO + CH₄	1.34e-15	5.05	1636.00	300 - 2500
71	CH + H₂CO → HCO + CH₂	9.21e-12	0.70	2000.00	66 - 300
72	CN + H₂CO → HCO + HCN	2.60e-10	-0.47	826.00	297 - 2500
73	H₂CO + O₂H → H₂O₂ + HCO	3.30e-12	0.00	5870.00	300 - 2500
74	H + H₂CO → HCO + H₂	4.85e-12	1.90	1379.00	250 - 5000
75	O + H₂CO → CO + OH + H	1.00e-10	0.00	0.00	1750 - 2575
76	O + H₂CO → HCO + OH	1.07e-11	1.17	1242.00	250 - 2500
77	OH + H₂CO → HCO + H₂O	7.76e-12	0.82	-30.60	200 - 3000
78	OH + H₂CO → HCOOH + H	2.00e-13	0.00	0.00	298 - 298
79	H₂CO + PHOTON → CO + H₂	1.00e-9	0.00	2.20	10 - 41000
80	H₂CO + PHOTON → CO + H + H	7.00e-10	0.00	1.70	10 - 41000
81	H₂CO + PHOTON → H₂CO⁺ + e^-	4.70e-10	0.00	2.80	10 - 41000
82	H₂CO + PHOTON → HCO⁺ + H + e^-	1.40e-11	0.00	3.10	10 - 41000

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

H2CO

H₂CO