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.. common
H2
H
CO
OH
HCO+
C
H3+
C+
H2O
e-

.. in RATE12
C
C+
C-
C10
C10+
C10-
C10H
C10H+
C10H-
C10H2
C10H2+
C10H3+
C11
C11+
C2
C2+
C2-
C2H
C2H+
C2H-
C2H2
C2H2+
C2H3
C2H3+
C2H4
C2H4+
C2H5
C2H5+
C2H5CN
C2H5CNH+
C2H5OH
C2H5OH+
C2H5OH2+
C2H7+
C2N
C2N+
C2N2+
C2NH+
C2O
C2O+
C2S
C2S+
C3
C3+
C3-
C3H
C3H+
C3H-
C3H2
C3H2+
C3H2O+
C3H3+
C3H4+
C3H5+
C3H6+
C3H7+
C3N
C3N+
C3N-
C3O
C3O+
C3P
C3S
C3S+
C4
C4+
C4-
C4H
C4H+
C4H-
C4H2+
C4H3
C4H3+
C4H4+
C4H5+
C4H7+
C4N
C4N+
C4P
C4P+
C4S
C4S+
C5
C5+
C5-
C5H
C5H+
C5H-
C5H2
C5H2+
C5H3+
C5H5+
C5N
C5N+
C5N-
C6
C6+
C6-
C6H
C6H+
C6H-
C6H2
C6H2+
C6H3+
C6H4+
C6H5+
C6H6
C6H6+
C6H7+
C7
C7+
C7-
C7H
C7H+
C7H-
C7H2
C7H2+
C7H3+
C7H4+
C7H5+
C7N
C7N+
C8
C8+
C8-
C8H
C8H+
C8H-
C8H2
C8H2+
C8H3+
C8H4+
C8H5+
C9
C9+
C9-
C9H
C9H+
C9H-
C9H2
C9H2+
C9H3+
C9H4+
C9H5+
C9N
C9N+
CCP
CCP+
CCl
CCl+
CF+
CH
CH+
CH-
CH2
CH2+
CH2CCH
CH2CCH+
CH2CCH2
CH2CHCCH
CH2CHCHCH2
CH2CHCN
CH2CHCN+
CH2CHCNH+
CH2CN
CH2CN+
CH2CO
CH2CO+
CH2NH
CH2NH2+
CH2PH
CH3
CH3+
CH3C3N
CH3C3N+
CH3C3NH+
CH3C4H
CH3C4H+
CH3C5N
CH3C5NH+
CH3C6H
CH3C7N
CH3C7NH+
CH3CCH
CH3CH3
CH3CH3+
CH3CHCH2
CH3CHO
CH3CHO+
CH3CHOH+
CH3CN
CH3CN+
CH3CNH+
CH3CO+
CH3COCH3
CH3COCH3+
CH3COCH4+
CH3CS+
CH3OCH3
CH3OCH3+
CH3OCH4+
CH3OH
CH3OH+
CH3OH2+
CH4
CH4+
CH4N+
CH5+
CN
CN+
CN-
CNC+
CNO
CO
CO+
CO2
CO2+
COOCH4+
CP
CP+
CRP
CRPHOT
CS
CS+
Cl
Cl+
ClO
ClO+
F
F+
Fe
Fe+
H
H+
H-
H2
H2+
H2C4N+
H2C7N+
H2C9N+
H2CCC
H2CCl+
H2CN
H2CNO+
H2CO
H2CO+
H2CS
H2CS+
H2Cl+
H2F+
H2NC+
H2NCO+
H2NO+
H2O
H2O+
H2O2
H2OCN+
H2PO+
H2S
H2S+
H2S2
H2S2+
H2SiO
H2SiO+
H3+
H3C3O+
H3C5N+
H3C7N+
H3C9N+
H3CO+
H3CS+
H3O+
H3S+
H3S2+
H3SiO+
H5C2O2+
HC2O+
HC2P
HC2P+
HC2S+
HC3N
HC3N+
HC3NH+
HC3O+
HC3S+
HC4H
HC4N+
HC4S+
HC5N
HC5N+
HC5NH+
HC7N
HC7N+
HC9N
HC9N+
HCN
HCN+
HCNH+
HCNO
HCNO+
HCNOH+
HCO
HCO+
HCO2+
HCOOCH3
HCOOH
HCOOH+
HCOOH2+
HCP
HCP+
HCS
HCS+
HCSi
HCSi+
HCl
HCl+
HF
HF+
HN2O+
HNC
HNC3
HNCO
HNCO+
HNCOH+
HNO
HNO+
HNS+
HNSi
HNSi+
HOC+
HOCN
HOCN+
HOCS+
HONC
HONC+
HPN+
HPO
HPO+
HS
HS+
HS2
HS2+
HSO+
HSO2+
HSiO2+
HSiS+
He
He+
HeH+
Mg
Mg+
N
N+
N2
N2+
N2H+
N2O
N2O+
NCCN
NCCNCH3+
NCCNH+
NH
NH+
NH2
NH2+
NH2CN
NH2CNH+
NH3
NH3+
NH4+
NO
NO+
NO2
NO2+
NS
NS+
Na
Na+
O
O+
O-
O2
O2+
O2-
O2H
O2H+
OCN
OCN+
OCS
OCS+
OH
OH+
OH-
P
P+
PC2H2+
PC2H3+
PC2H4+
PC3H+
PC4H+
PCH2+
PCH3+
PCH4+
PH
PH+
PH2
PH2+
PH3+
PHOTON
PN
PN+
PNH2+
PNH3+
PO
PO+
S
S+
S-
S2
S2+
SO
SO+
SO2
SO2+
Si
Si+
SiC
SiC+
SiC2
SiC2+
SiC2H
SiC2H+
SiC2H2
SiC2H2+
SiC2H3+
SiC3
SiC3+
SiC3H
SiC3H+
SiC3H2+
SiC4
SiC4+
SiC4H+
SiCH2
SiCH2+
SiCH3
SiCH3+
SiCH4+
SiF+
SiH
SiH+
SiH2
SiH2+
SiH3
SiH3+
SiH4
SiH4+
SiH5+
SiN
SiN+
SiNC
SiNC+
SiNCH+
SiNH2+
SiO
SiO+
SiO2
SiOH+
SiS
SiS+
e-

Si

Silicon
Flags: RATE12
Empirical: Si
Mass: 28 amu
Heat of formation: 446.0 kJ mol-1
Added to system: 2003-05-06 06:43:21

Reactions: Formation | Destruction

76 Si formation reactions

ReactionαβγTl - Tu (K)
1Mg + Si+ → Si + Mg+2.90e-9 0.00 0.0010 - 41000
2Na + Si+ → Si + Na+2.70e-9 0.00 0.0010 - 41000
3Si+ + Fe → Fe+ + Si1.90e-9 0.00 0.0010 - 41000
4HCSi + CRPHOT → CH + Si1.30e-17 0.00750.0010 - 41000
5SiC + CRPHOT → Si + C1.30e-17 0.00250.0010 - 41000
6SiH + CRPHOT → Si + H1.30e-17 0.00250.0010 - 41000
7SiN + CRPHOT → Si + N1.30e-17 0.00250.0010 - 41000
8SiNC + CRPHOT → Si + CN1.30e-17 0.00750.0010 - 41000
9SiO + CRPHOT → Si + O1.30e-17 0.00250.0010 - 41000
10SiS + CRPHOT → S + Si1.30e-17 0.00250.0010 - 41000
11HCSi+ + e- → Si + CH1.50e-7-0.50 0.0010 - 300
12HNSi+ + e- → Si + NH1.50e-7-0.50 0.0010 - 300
13HSiS+ + e- → HS + Si1.50e-7-0.50 0.0010 - 300
14SiC+ + e- → Si + C2.00e-7-0.50 0.0010 - 300
15SiC2+ + e- → Si + C21.50e-7-0.50 0.0010 - 300
16SiC2H+ + e- → Si + C2H1.50e-7-0.50 0.0010 - 300
17SiC3H+ + e- → C3H + Si1.50e-7-0.50 0.0010 - 300
18SiCH2+ + e- → Si + CH22.00e-7-0.50 0.0010 - 300
19SiF+ + e- → Si + F2.00e-7-0.50 0.0010 - 300
20SiH+ + e- → Si + H2.00e-7-0.50 0.0010 - 300
21SiH2+ + e- → Si + H21.50e-7-0.50 0.0010 - 300
22SiH2+ + e- → Si + H + H2.00e-7-0.50 0.0010 - 300
23SiN+ + e- → Si + N2.00e-7-0.50 0.0010 - 300
24SiNC+ + e- → Si + CN3.00e-7-0.50 0.0010 - 300
25SiO+ + e- → Si + O2.00e-7-0.50 0.0010 - 300
26SiOH+ + e- → Si + OH1.50e-7-0.50 0.0010 - 300
27SiS+ + e- → S + Si2.00e-7-0.50 0.0010 - 300
28CH + SiH+ → Si + CH2+6.00e-10-0.50 0.0010 - 41000
29CH + SiO+ → HCO+ + Si5.90e-10-0.50 0.0010 - 41000
30H2O + SiH+ → Si + H3O+8.00e-10-0.50 0.0010 - 41000
31He+ + SiC → Si + C+ + He2.00e-9-0.50 0.0010 - 41000
32He+ + SiNC → Si + CN+ + He2.00e-9-0.50 0.0010 - 41000
33He+ + SiO → Si + O+ + He8.60e-10-0.50 0.0010 - 41000
34He+ + SiS → S+ + Si + He3.80e-9-0.50 0.0010 - 41000
35N + SiO+ → NO+ + Si9.00e-11 0.00 0.0010 - 41000
36NH3 + SiH+ → Si + NH4+1.00e-9-0.50 0.0010 - 41000
37C- + Si+ → Si + C7.51e-8-0.50 0.0010 - 41000
38C10- + Si+ → C10 + Si7.51e-8-0.50 0.0010 - 41000
39C10H- + Si+ → C10H + Si7.51e-8-0.50 0.0010 - 41000
40C2- + Si+ → C2 + Si7.51e-8-0.50 0.0010 - 41000
41C2H- + Si+ → C2H + Si7.51e-8-0.50 0.0010 - 41000
42C3- + Si+ → C3 + Si7.51e-8-0.50 0.0010 - 41000
43C3H- + Si+ → C3H + Si7.51e-8-0.50 0.0010 - 41000
44C3N- + Si+ → C3N + Si7.51e-8-0.50 0.0010 - 41000
45C4- + Si+ → C4 + Si7.51e-8-0.50 0.0010 - 41000
46C4H- + Si+ → C4H + Si7.51e-8-0.50 0.0010 - 41000
47C5- + Si+ → C5 + Si7.51e-8-0.50 0.0010 - 41000
48C5H- + Si+ → C5H + Si7.51e-8-0.50 0.0010 - 41000
49C5N- + Si+ → C5N + Si7.51e-8-0.50 0.0010 - 41000
50C6- + Si+ → C6 + Si7.51e-8-0.50 0.0010 - 41000
51C6H- + Si+ → C6H + Si7.51e-8-0.50 0.0010 - 41000
52C7- + Si+ → C7 + Si7.51e-8-0.50 0.0010 - 41000
53C7H- + Si+ → C7H + Si7.51e-8-0.50 0.0010 - 41000
54C8- + Si+ → C8 + Si7.51e-8-0.50 0.0010 - 41000
55C8H- + Si+ → C8H + Si7.51e-8-0.50 0.0010 - 41000
56C9- + Si+ → C9 + Si7.51e-8-0.50 0.0010 - 41000
57C9H- + Si+ → C9H + Si7.51e-8-0.50 0.0010 - 41000
58CH- + Si+ → CH + Si7.51e-8-0.50 0.0010 - 41000
59CN- + Si+ → CN + Si7.51e-8-0.50 0.0010 - 41000
60H- + Si+ → Si + H7.51e-8-0.50 0.0010 - 41000
61O- + Si+ → O + Si7.51e-8-0.50 0.0010 - 41000
62O2- + Si+ → O2 + Si7.51e-8-0.50 0.0010 - 41000
63OH- + Si+ → OH + Si7.51e-8-0.50 0.0010 - 41000
64Si+ + S- → S + Si7.51e-8-0.50 0.0010 - 41000
65N + SiC → Si + CN5.00e-11 0.00 0.0010 - 300
66O + SiC → Si + CO5.00e-11 0.00 0.0010 - 300
67O + SiN → NO + Si5.00e-11 0.00 0.0010 - 300
68SiC2 + PHOTON → C2 + Si2.60e-10 0.00 2.3010 - 41000
69SiC4 + PHOTON → Si + C41.00e-10 0.00 2.3010 - 41000
70SiC + PHOTON → Si + C1.00e-10 0.00 2.3010 - 41000
71SiH + PHOTON → Si + H2.80e-9 0.00 1.6010 - 41000
72SiN + PHOTON → Si + N1.00e-9 0.00 2.8010 - 41000
73SiNC + PHOTON → CN + Si1.00e-9 0.00 1.7010 - 41000
74SiO + PHOTON → Si + O1.60e-9 0.00 2.3010 - 41000
75SiS + PHOTON → S + Si1.00e-10 0.00 2.3010 - 41000
76Si+ + e- → Si + PHOTON4.26e-12-0.62 0.0010 - 1000

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