Open Access
Table D.3
Reactions involving chlorine species used in the 1D photochemistry model.
| Key | Reaction | Rate Coefficient | Rate at T=298 K | Reference |
|---|---|---|---|---|
| cl1 | Cl + o3 → ClO + o2 | 2.8E-llexp(-250/T) | 1.21E-11 | Sander et al. (2019) |
| cl2 | ClO + O → Cl + o2 | 2.5E-11exp(110T) | 3.62E-11 | Sander et al. (2019) |
| cl3 | ClO + ClO → Cl2 + o2 | 3.0E-11exp(-1590/T) | 1.45E-13 | Sander et al. (2019) |
| cl4 | ClO + ClO → Cl + Cl + o2 | 3.0E-11exp(-2450/T) | 8.07E-15 | Sander et al. (2019) |
| cl5 | ClO + ClO → Cl + OClO | 3.5E-13exp(-1370/T) | 3.52E-15 | Sander et al. (2019) |
| cl6 | ClO + ClO → Cl2O2 | 2.5×2.0E-32 (300/T)4 | 8.24E-15 | Sander et al. (2019) |
| cl7 | Cl2O2 → ClO + ClO | cl6/(2.16E-27exp(8537/T)) | 1.38E-10 | Sander et al. (2019) |
| cl8 | Cl + H2 → HCl + H | 3.9E-llexp(-2310/T) | 1.68E-14 | Sander et al. (2019) |
| cl9 | Cl + HO2 → HCl + O2 | 4.4e-11 - 7.5E-llexp(-620/T) | 3.46E-11 | Sander et al. (2019) |
| cl10 | Cl + HO2 → ClO + OH | 7.5E-11exp(-620/T) | 9.37E-12 | Sander et al. (2019) |
| cl11 | Cl + H2O2 → HCl + HO2 | l.lE-11exp(-980/T) | 4.10E-13 | Sander et al. (2019) |
| cl12 | ClO + OH → 0.94 Cl + 0.94 HO2+ 0.06 HCl + 0.06 O2 | 7.3E-12exp(300/T) | 2.00E-11 | Sander et al. (2019) |
| cl13 | ClO + HO2 → HOC1 + O2 | 2.2E-12exp(340/T) | 6.89E-12 | Sander et al. (2019) |
| cl14 | HCl + OH → Cl + H2O | 1.7E-12exp(-230/T) | 7.86E-13 | Sander et al. (2019) |
| cl15 | HOC1 + OH → ClO + H2O | 3.0E-12exp(-500/T) | 5.60E-13 | Sander et al. (2019) |
| cl16 | Cl + CH4 → HCl + CH3 | 6.6E-12exp(-1240/T) | 1.03E-13 | Sander et al. (2019) |
| cl17 | Cl + HCHO → HCl + HCO | 8.2E-11exp(-34/T) | 7.32E-11 | Sander et al. (2019) |
| cl18 | Cl + CH3OOH → HCHO + HCl + OH | 5.9E-11 | 5.90E-11 | Sander et al. (2019) |
| cl19 | ClO + CH3O2 → CH3O + ClOO | 4.92E-12exp(-330/T) | 1.63E-12 | Atkinson et al. (2001) |
| cl20 | ClO + CH3O2 → CH3OCl + o2 | 2.6E-l3exp(260/T) | 6.22E-13 | Atkinson et al. (2001) |
| cl21 | ClO + CH3O2 → CH3O + OClO | l.E-15 | 1.00E-15 | Atkinson et al. (2001) |
| cl22 | Cl + CH3O2 → 0.5 ClO + 0.5 CH3O + 0.5 HCl + 0.5 CH2OO | 1.6E-10 | 1.60E-10 | Sander et al. (2019) |
| cl23 | CO + Cl + M → C1CO + M | 2.5×l.33E-33(298/T)3.8 | 5.34E-16 | Atkinson et al. (2007) |
| cl24 | ClOO + Cl → ClO + ClO | 1.2E-11 | 1.20E-11 | Burkholder et al. (2019) |
| cl25 | ClOO + Cl → O2 + Cl2 | 2.31E-10 | 2.31E-10 | Burkholder et al. (2019) |
| cl26 | ClOO → O2 + Cl | 2.8E- 10exp(- 1820/T)× [M] | 1.00E+4a | Atkinson et al. (2007) |
| cl27 | HClO4 + OH → ClO4 + H2O | 1.24E-8exp(-1664/T) T−29 | 3.11E-18 | Zhu & Lin (2003) |
| cl28 | Cl + O2 + M → ClOO + M | 2.5×l.44E-33(298/T)3.9 | 5.78E-16 | Atkinson et al. (2007) |
| cl29 | Cl + CH3OCl → Cl2 + CH3O | 5.2E-11 | 5.20E-11 | Kukui et al. (1997) |
| cl30 | Cl + Cl2O2 → Cl2 + ClOO | IE-10 | 1.00E-10 | Atkinson et al. (2007) |
| cl31 | Cl + CH3OCl → HCl +CH2OCl | 9.15E-12 | 9.15E-12 | Kukui et al. (1997) |
| cl32 | OH + CH3OCl → CH3O HOC1 | 2.5E-12exp(-370/T) | 7.22E-13 | Burkholder et al. (2019) |
| cl33 | C1CO → Cl + CO | 4.1E-10exp(-2960/T)×[M] | 3.21E+3a | Atkinson et al. (2007) |
| cl34 | Cl2 + O(1D) → O + Cl2 | 0.25×7.2E-10 | 1.80E-10 | Burkholder et al. (2019) |
| cl35 | Cl2 + O(1D) → Cl + ClO | 0.75×7.2E-10 | 5.40E-10 | Burkholder et al. (2019) |
| cl36 | Cl2 + OH → HOCl + Cl | 2.6E-12exp(-1100/T) | 6.49E-14 | Burkholder et al. (2019) |
| cl37 | Cl2 + H → HCl + Cl | 8.0E-llexp(-417/T) | 1.98E-11 | Berho et al. (1999) |
| cl38 | Cl2 + CH3 → CH3Cl + Cl | l.67E- 13exp(664/T)×(T/298)2.52 | 1.55E-12 | Eskola et al. (2008) |
| cl39 | HCl + O(1D) → 0.12 O + 0.12 HCl + 0.22 H + 0.22 ClO + 0.66 Cl + 0.66 OH | 1.5E-10 | 1.50E-10 | Burkholder et al. (2019) |
| cl40 | HCl + O → OH + Cl | l.lE-llexp(-3300/T) | 3.64E-12 | Burkholder et al. (2019) |
| cl41 | HCl + H → H2 + Cl | 2.01E-11exp(-1790/T) | 4.95E-14 | Kita & Stedman (1982) |
| cl42 | HOC1 + O → ClO + OH | 1.7E-13 | 1.70E-13 | Sander et al. (2019) |
| cl43 | HCOOH + Cl → HCl + Products | 2.01E-13 | 2.01E-13 | Burkholder et al. (2019) |
| cl44 | Cl + O3 + M → ClO3 + M | 2.5E-31 | 4.01E-14 | Catling et al. (2010) |
| cl45 | ClO + ClO3 → ClOO + OClO | 1.85E-18exp(-2417/T) T2.28 | 4.08E-17 | Catling et al. (2010) |
| cl46 | ClO + ClO3 → OClO + OClO | 1.42E-18exp(-2870/T) T2.11 | 1.55E-17 | Catling et al. (2010) |
| cl47 | ClO + ClO3 + M → Cl2O4 + M | k 3rd(1.43E-lexp(-1597/T), -10.19, 1.43e-10exp(-87/T), 0.09) | 1.07E-10 | Catling et al. (2010) |
| cl48 | ClO3 + OH → HClO4 | 6.67E-13 | 6.67E-13 | Catling et al. (2010) |
| cl49 | ClO3 + OH + M → HClO4 | k 3rd(1.90E+36exp(-5542/T), -15.3, 3.20E-10exp(-25/T), 0.07) | 2.94E-10 | Catling et al. (2010) |
| cl50 | ClO3 + OH → OClO + HO2 | 2.1E-10exp(-18/T)T0.09 | 3.31E-10 | Catling et al. (2010) |
| cl51 | OClO + O + M → ClO3 + M | k 3rd( 7.25E-31, 3.1, 8.30E-12, 1) | 2.34E-13 | Catling et al. (2010) |
| cl52 | OClO + O3 → ClO3 + o2 | 2.1E-12exp(-4700/T) | 2.97E-19 | Catling et al. (2010) |
| cl53 | ClO4 + Cl → ClO3 + ClO | 1.98E-10exp(-49/T) (T/298)0.16 | 1.68E-10 | Xu & Lin (2003) |
| cl54 | ClO4 + HOC1 → ClO + HClO4 | 2.57E-14exp(-1017/T) (T/298)1.73 | 8.47E-16 | Xu & Lin (2003) |
| cl55 | HOC1 + Cl → Cl2 + OH | 3.2E-12exp(-130/T) | 2.07E-12 | Burkholder et al. (2019) |
| cl56 | HOC1 + Cl → HCl + ClO | 2.04E-13exp(-130/T) | 1.32E-13 | Burkholder et al. (2019) |
| cl57 | OClO + O → ClO + o2 | 2.4E-12exp(-960/T) | 9.58E-14 | Atkinson et al. (2007) |
| cl58 | OClO + OH → HOC1 + O2 | l.4E-12exp(600/T) | 1.05E-11 | Burkholder et al. (2019) |
| cl59 | OClO + Cl → ClO + ClO | 3.4E-11exp(l60/T) | 5.82E-11 | Burkholder et al. (2019) |
| cl60 | Cl2 + CH3 → CH3Cl + Cl | l.67E- 13exp(665/T)(T/298)2'52 | 1.56E-12 | Eskola et al. (2008) |
| cl61 | Cl + CH3 → ClCH3 | 6.00E-11 | 6.00E-11 | Parker et al. (2007) |
| cl62 | CH3Cl + O(1D) → 0.1O + O.lCH3Cl + 0.46C1O + O.46CH3 + 0.35C1 + 0.35C1O + 0.09H | 2.60E-10 | 2.60E-10 | Burkholder et al. (2019) |
| cl63 | CH3Cl + OH → CH2C1 + H2O | 1.96E-12exp(-1200/T) | 3.50E-14 | Burkholder et al. (2019) |
| cl64 | CH3Cl + Cl → CH2C1 + HCl | 2.03E-llexp(-1110/T) | 4.90E-13 | Burkholder et al. (2019) |
| cl65 | C1CO + O → Cl + co2 | 3.00E-11 | 3.00E-11 | Krasnopolsky (2022) |
| cl66 | C1CO + NO2 → Cl + CO2 + NO | 6.00E-l3exp(600/T) | 4.49E-12 | Krasnopolsky (2022) |
| cl67 | C1CO + O2 + M → ClCO3 + M | exp(600/T)×5.70E-32/(l + M/2E+18) | 5.90E-14 | Krasnopolsky (2022) |
| cl68 | C1CO + Cl → Cl2 + CO | 1.10E-10exp(-706/T) | 9.35E-12 | Krasnopolsky (2022) |
All rate coefficients calculated at T = 298 K are given in units of cm3 molec.−1 s−1, with exceptions denoted with a that are first-order and in units of s−1. Termolecular rate coefficients are calculated for an atmospheric temperature of 298 K and pressure of 660 Pa. [M] denotes total atmospheric number density in molecules cm−3.
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