CHEMICAL KINETIC DATA FOR STRATOSPHERIC MODELING The present compilation of kinetic data represents the 12th evaluation prepared by the NASA Panel for Data Evaluation. The Panel was established in 1977 by the NASA Upper Atmosphere Research Program Office for the purpose of providing a critical tabulation of the latest kinetic and photochemical data for use by modelers in computer simulations of stratospheric chemistry. The recommended rate data and cross sections are based on laboratory measurements. The major use of theoretical extrapolation of data is in connection with three-body reactions, in which the required pressure or temperature dependence is sometimes unavailable from laboratory measurements, and can be estimated by use of appropriate theoretical treatment. In the case of important rate constants for which no experimental data are available, the panel may provide estimates of rate constant parameters based on analogy to similar reactions for which data are available. Rate constants are expressed in the form k(T) = A exp(-E/RT), where A is the pre-exponential factor, E the activation energy, R the gas constant, and T the absolute temperature. Uncertainties are expressed by the factor f, e.g., a value of 4.2 X 10~10 with/= 2 indicates that the true value is believed to lie between 2.1 X 10~10 and 8.4 X 10"10. The value of/at other temperatures may be calculated from/(298), given in the last column, by: f(T) =/(298) exp[(A£/R)(l/r-l/298)] , where AE/R is the uncertainty in E/R. Table 1 covers rate constant data on second order reactions, grouped by class, while Table 2 covers association reactions. Relevant equilibrium constant data are given in Table 3. All concentrations are measured in molecules cm"3. Notes on each reaction, as well as related photochemical data, may be found in the reference. The assistance of Robert Hampson is gratefully acknowledged. Reference DeMore, W. B., Sander, S. P., Golden, D. M., Hampson, R. E, Kurylo, M. J., Howard, C. J., Ravishankara, A. R., Kolb, C. E., and Molina, M. J., Chemical Kinetics and Photochemical Data for Use in Atmospheric Modeling. Evaluation Number 12, Jet Propulsion Laboratory Publication 97-4, Pasadena CA, 1997. The report is also available at the World Wide Web site < http:// remus.jpl.nasa.gov/pub/jpl97>. TABLE 1. Rate Constants for Second Order Reactions Reaction O Reactions_ o*+ o3^o2 + o2 0('D) Reactions O('D) + 02 -> O + 02 0(1D) + 03^02+02 -> o2+o+o O('D) + H2 -> OH + H O('D) + H20 -> OH + OH O('D) + N2 -> O + N2 0(1D) + N2O^N2+02 -> NO + NO O('D) + NH3 -> OH + NH2 O('D) + C02 -> O + C02 O('D) + CH4-> products O('D) + HC1 -> products O('D) + HF —> OH + F O('D) + HBr -> products O('D) + Cl2-> products O('D) + CC120 -> products O('D) + CC1FO -> products O('D) + CF20 -> products O('D) + CC14 -> products (CFC-10) O('D) + CH3Br -> products O('D) + CH2Br2 -> products O('D) + CHBr3 -> products O('D) + CH3F -> products (HFC-41) O('D) + CH2F2^ products (HFC-32) O('D) + CHF3^ products (HFC-23) O('D) + CHC12F -> products (HCFC-21) A EIR k (298 K) molecule 1 s 1 K cm3 molecule 1 s 1 /(298 8.0xl0-12 2060±250 8.0xlO-15 1.15 3.2x10-" -(70±100) 4.0x10-" 1.2 1.2xl0-10 0±100 1.2xl0-10 1.3 1.2xl0-10 0±100 1.2xl0-10 1.3 l.lxlO-10 0±100 l.lxlO-10 1.1 2.2xl0-10 0±100 2.2xl0-10 1.2 1.8x10-" -(110±100) 2.6x10-" 1.2 4.9x10-" 0±100 4.9x10-" 1.3 6.7x10-" 0±100 6.7x10-" 1.3 2.5xl0-10 0±100 2.5xl0-10 1.3 7.4x10-" -(120±100) l.lxlO-10 1.2 1.5xl0-10 0±100 1.5xl0-10 1.2 1.5xl0-10 0±100 1.5xl0-10 1.2 1.4xl0-10 0±100 1.4xl0-10 2.0 1.5xl0-10 0±100 1.5xl0-10 2.0 2.8xl0-10 0±100 2.8xl0-10 2.0 3.6xl0-10 0±100 3.6xl0-10 2.0 1.9xl0-10 0±100 1.9xl0-10 2.0 7.4x10-" 0±100 7.4x10-" 2.0 3.3xl0-10 0±100 3.3xl0-10 1.2 1.8xl0-10 0±100 1.8xl0-10 1.3 2.7xl0-10 0±100 2.7xl0-10 1.3 6.6xl0-10 0±100 6.6xl0-10 1.5 1.5xl0-10 0±100 1.5xl0-10 1.2 5.1x10-" 0±100 5.1x10-" 1.3 9.1xl0-12 0±100 9.1xl0-12 1.2 1.9xl0-10 0±100 1.9xl0-10 1.3 5-207 5-208 Chemical Kinetic Data for Stratospheric Modeling A EIR k (298 K) Reaction cm3 molecule 1 s 1 K cm3 molecule 1 s 1 .#298 O('D) + CHC1F2 -> products (HCFC-22) l.OxlO-10 0±100 l.OxlO-10 1.2 O('D) + CC13F -> products (CFC-11) 2.3xl0-10 0±100 2.3xl0-10 1.2 O('D) + CC12F2 -> products (CFC-12) 1.4xl0-10 0±100 1.4xl0-10 1.3 O('D) + CC1F3 -> products (CFC-13) 8.7x10-" 0±100 8.7x10-" 1.3 O('D) + CClBrF2 -> products (Halon-1211) 1.5xl0-10 0±100 1.5xl0-10 1.3 O('D) + CBr2F2 -> products (Halon-1202) 2.2xl0-10 0±100 2.2xl0-10 1.3 O('D) + CBrF3 -> products (Halon-1301) l.OxlO-10 0±100 l.OxlO-10 1.3 O('D) + CF4^ CF4 + O (CFC-14) - - 2.0xl0-14 1.5 O('D) + CH3CH2F -> products (HFC-161) 2.6xl0-10 0±100 2.6xl0-10 1.3 O('D) + CH3CHF2 -> products (HFC-152a) 2.0xl0-10 0±100 2.0xl0-10 1.3 O('D) + CH3CC12F^ products (HCFC-141b) 2.6xl0-10 0±100 2.6xl0-10 1.3 O('D) + CH3CC1F2^ products (HCFC-142b) 2.2xl0-10 0±100 2.2xl0-10 1.3 O('D) + CH3CF3 -> products (HFC-143a) l.OxlO-10 0±100 l.OxlO-10 3.0 O('D) + CH2C1CC1F2 -> products (HCFC-132b) 1.6xl0-10 0±100 1.6xl0-10 2.0 O('D) + CH2C1CF3^ products (HCFC-133a) 1.2xl0-10 0±100 1.2xl0-10 1.3 O('D) + CH2FCF3^ products (HFC-134a) 4.9x10-" 0±100 4.9x10-" 1.3 O('D) + CHC12CF3^ products (HCFC-123) 2.0xl0-10 0±100 2.0xl0-10 1.3 O('D) + CHC1FCF3^ products (HCFC-124) 8.6x10-" 0±100 8.6x10-" 1.3 O('D) + CHF2CF3^ products (HFC-125) 1.2xl0-10 0±100 1.2xl0-10 2.0 O('D) + CC13CF3 -> products (CFC-113a) 2xl0-10 0±100 2xl0-10 2.0 O('D) + CC12FCC1F2 -> products (CFC-113) 2xl0-10 0±100 2xl0-10 2.0 O('D) + CC12FCF3 -> products (CFC-114a) lxlO-10 0±100 lxlO-10 2.0 O('D) + CC1F2CC1F2 -> products (CFC-114) 1.3xl0-10 0±100 1.3xl0-10 1.3 O('D) + CC1F2CF3 -> products (CFC-115) 5x10-" 0±100 5x10-" 1.3 O('D) + CBrF2CBrF2 -> products (Halon-2402) 1.6xl0-10 0±100 1.6xl0-10 1.3 O('D) + CF3CF3 -> O + CF3CF3(CFC-116) - - 1.5xlO-13 1.5 O('D) + CHF2CF2CF2CHF2 -> products (HFC-338pcc) 1.8x10-" 0±100 1.8x10-" 1.5 O('D) + c-C4Fs —> products - - 8xlO-13 1.3 O('D) + CF3CHFCHFCF2CF3 -> products (HFC-43-10mee) 2.1xl0-10 0±100 2.1xl0-10 4 O('D) + CSF12 -> products (CFC-41-12) - - 3.9xl0-13 2 O('D) + C6F14 -> products (CFC-51-14) - - lxlO-12 2 O('D) + l,2-(CF3)2c-C4F6 -> products - - 2.8xl0-13 2 O('D) + SF6 -> products - - 1.8xl0-14 1.5 Singlet 02 Reactions 02('A) + O -> products - - <2xl0-16 - 02('A) + 02 -> products 3.6xl0-ls 220±100 1.7xl0-ls 1.2 O/A) + 03 -> O + 202 5.2x10-" 2840±500 3.8xl0-15 1.2 02('A) + H20 -> products - - 4.8xl0-ls 1.5 02('A) + N -> NO + O - - <9xl0-17 - O ('A) + N2 -> products - - products - - <2xl0-20 - 02('Z) + O -> products - - 8xl0-14 5.0 02('Z) + 02 -> products - - 3.9xl0-17 1.5 02('Z) + 03 -> products 2.2x10-" 0±200 2.2x10-" 1.2 02('Z) + H20 -> products - - 5.4xl0-12 1.3 O + N —> products - - products 2.1xl0-15 0±200 2.1xl0-15 1.2 02('Z) + C02 -> products 4.2xl0-13 0±200 4.2xl0-13 1.2 HO Reactions O + OH -> 02 + H 2.2x10-" -(120±100) 3.3x10-" 1.2 0 + H02^OH + 02 3.0x10-" -(200±100) 5.9x10-" 1.2 0 + H202^OH + H02 1.4xl0-12 2000±1000 1.7xl0-15 2.0 H + 03^OH + 02 1.4xl0-10 470±200 2.9x10-" 1.25 H + H02 -> products 8.1x10-" 0±100 8.1x10-" 1.3 OH + 03^H02 + 02 1.6xl0-12 940±300 6.8xl0-14 1.3 OH + H2^H20+ H 5.5xl0-12 2000±100 6.7xl0-15 1.1 OH + HD -> products 5.0xlO-12 2130±200 4.0xl0-15 1.2 OH + OH -> H20 + O 4.2xl0-12 240±240 1.9xl0-12 1.4 Chemical Kinetic Data for Stratospheric Modeling 5-209 A EIR k (298 K) Reaction cm3 molecule 1 s 1 K cm3 molecule 1 s 1 A298) OH + H02^H20 + 02 4.8x10-" -(250±200) l.lxlO-10 1.3 OH + H202^H20+H02 2.9xl0-12 160±100 1.7xl0-12 1.2 H02+03^OH + 202 l.lxlO"14 500± 2.0xl0-15 1.3 H02+H02^H202 + 02 2.3xl0-13 -(600±200) 1.7xl0-12 1.3 1.7xlO-33[M] -(1000±400) 4.9xlO-32[M] 1.3 NO Reactions O + N02 -> NO + 02 6.5xl0-12 -(120±120) 9.7xl0-12 1.1 0 + N03^ 02+N02 l.OxlO"11 0±150 1.0x10-" 1.5 O + N2Os —> products <3.0xl0-16 0 + HN03^OH+N03 <3.0xl0-17 O + H02N02^ products 7.8x10-" 3400±750 8.6xl0-16 3.0 H + N02^ OH + NO 4.0xl0-10 340±300 1.3xl0-10 1.3 OH + N03 -> products 2.2x10-" 1.5 OH + HONO -> H20 + N02 1.8x10-" 390± 4.5xl0-12 1.5 OH + HN03 -> H20 + N03 See reference 1.3 OH + H02N02 -> products 1.3xl0-12 -(380±) 4.6xl0-12 1.5 OH + NH3 -> H20 + NH2 1.7xl0-12 710±200 1.6xl0-13 1.2 H02 + NO -> N02 + OH 3.5xl0-12 -(250±50) 8.1xl0-12 1.15 H02 + N02^HONO + 02 See reference H02 + N03 -> products 3.5xl0-12 1.5 H02 + NH2 -> products 3.4x10-" 2.0 N + 02^NO + 0 1.5x10-" 3600±400 8.5xl0-17 1.25 N + 03^NO + 02 <2.0xl0-16 N + NO^N2+0 2.1x10-" -(100±100) 3.0x10-" 1.3 N + N02^N20+0 5.8xl0-12 -(220±100) 1.2x10-" 1.5 NO + 03^ N02+02 2.0xl0-12 1400±200 1.8xl0-14 1.1 NO + N03^ 2N02 1.5x10-" -(170±100) 2.6x10-" 1.3 N02 + 03^N03+02 1.2xl0-13 2450±150 3.2xl0-17 1.15 N02 + N03 -> NO + N02 +02 See reference N03 + N03 -> 2N02 + 02 8.5xl0-13 2450±500 2.3xl0-16 1.5 NH2 + 02 —> products <6.0xl0-21 NH2 + 03 —> products 4.3xl0-12 930±500 1.9xl0-13 3.0 NH2 + NO -> products 4.0xl0-12 -(450±150) 1.8x10-" 1.3 NH2 + N02 -> products 2.1xl0-12 -(650±250) 1.9x10-" 3.0 NH + NO -> products 4.9x10-" 0±300 4.9x10-" 1.5 NH + N02 -> products 3.5xl0-13 -(1140±500) 1.6x10-" 2.0 03+HN02^02+HN03 <5.0xl0-19 N2Os+HJ0-»2HN03 <2.0xl0-21 N (A,v) + 02 —> products 2.5xl0-12, v=0 1.5 N2(A,v) + 03 —> products 4.1x10-", v=0 2.0 Reactions of Organic Compounds O + CH3 —> products LlxlO"10 0±250 l.lxlO-10 1.3 O + HCN -> products 1.0x10-" 4000±1000 1.5xl0-17 10 O + C2H2 —> products 3.0x10-" 1600±250 1.4xl0-13 1.3 O + H2CO -> products 3.4x10-" 1600±250 1.6xl0-13 1.25 O + CH3CHO -> CH3CO + OH 1.8x10-" 1100±200 4.5xl0-13 1.25 03 + C2H2 —> products l.OxlO-14 4100±500 l.OxlO-20 3 03 + C2H4 —> products 1.2xl0-14 2630±100 1.7xl0-ls 1.25 03 + C3H6 —> products 6.5xl0-15 1900±200 l.lxlO-17 1.2 OH + CO -> products 1.5xl013x 0±300 1.5xl013x 1.3 (l+0.6Pa[J (1+0.6PJ OH + CH4 -> CH3 + H20 2.45xl0-12 1775±100 6.3xl0-15 1.1 OH + 13CH4 -> 13CH3 + H20 See reference OH + CH3D -> products 3.5xl0-12 1950 ± 200 5.0xlO-15 1.15 OH + H2CO -> H20 + HCO 1.0x10-" 0±200 1.0x10-" 1.25 OH + CH3OH -> products 6.7xl0-12 600±300 8.9xl0-13 1.2 OH + CH3OOH -> products 3.8xl0-12 -(200±200) 7.4xl0-12 1.5 OH + HC(0)OH -> products 4.0xl0-13 0±200 4.0xl0-13 1.3 5-210 Chemical Kinetic Data for Stratospheric Modeling A EIR k (298 K) Reaction cm3 molecule 1 s 1 K cm3 molecule 1 s 1 /(298) OH + HCN -> products 1.2xl0"13 400±150 3.1xl0-14 3 OH + C2H6^H20 + C2H5 8.7xl0-12 1070±100 2.4xl0-13 1.1 OH + C3Hs^H20 + C3H7 l.OxlO"11 660±100 l.lxlO-12 1.2 OH + CH3CHO -> CH3CO + H20 5.6xl0-12 -(270±200) 1.4x10-" 1.2 OH + C2HsOH -> products 7.0xl0-12 235±100 3.2xl0-12 1.3 OH + CH3C(0)OH -> products 4.0xl0-13 -(200±400) 8.0xlO-13 1.3 OH + CH3C(0)CH3 -> CH3C(0)CH2 + H20 2.2xl0-12 685±100 2.2xl0-13 1.15 OH + CH3CN -> products 7.8xl0-13 1050±200 2.3xl0-14 1.5 OH+ CH3ON02 -> products 5.0xlO-13 890±500 2.4xl0-14 3 OH + CH3C(0)02N02 (PAN)—> products <4xl0-14 OH+ C2HsON02 -> products 8.2xl0-13 450±300 1.8xl0-13 3 H02 + CH20 -> adduct 6.7xl0-15 -(600±600) 5.0xl0-14 5 H02 + CH302 -> CH3OOH + 02 3.8xl0-13 -(800±400) 5.6xl0-12 2 H02 + C2H502^C2H5OOH + 02 7.5xl0-13 -(700±250) 8.0xl0-12 1.5 H02 + CH3C(0)02 -> products 4.5xl0-13 -(1000±600) 1.3x10-" 2 N03 + CO —> products <4.0xl0-19 N03 + CH20 -> products 5.8xl0-16 1.3 N03 + CH3CHO -> products 1.4xl0"12 1900±300 2.4xl0-15 1.3 CH3 + 02 —> products <3.0xl0-16 CH3 + 03 —> products 5.4xl0-12 220±150 2.6xl0-12 2 HCO + 02 -> CO + H02 3.5xl0-12 -(140±140) 5.5xl0-12 1.3 CH2OH + 02 -> CH20 + H02 9.1xl0-12 0±200 9.1xl0-12 1.3 CH30 + 02 -> CH20 + H02 3.9xl0-14 900±300 1.9xl0-15 1.5 CH30 + NO -> CH20 + HNO See reference CH30+ N02 -> CH20 + HONO l.lxlO"11 1200±600 2.0xl0-13 5 CH302 + 03 -> products <3.0xl0-17 CH302 + CH302 -> products 2.5xl0-13 -(190±190) 4.7xl0-13 1.5 CH302 + NO -> CH30 + N02 3.0xl0-12 -(280±60) 7.7xl0-12 1.15 CH302 + CH3C(0)02 -> products 1.3xl0"12 -(640±200) 1.1x10-" 1.5 C2H5 + 02^C2H4 + H02 <2.0xl0-14 C2HsO + 02 -> CH3CHO + H02 6.3xl0-14 550±200 l.OxlO-14 1.5 C2H502 + C2H502 -> products 6.8xl0-14 0±300 6.8xl0-14 2 C2Hs02 + NO -> products 2.6xl0-12 -(365±150) 8.7xl0-12 1.2 CH3C(0)02 + CH3C(0)02 -> products 2.9xl0-12 -(500±150) 1.5x10-" 1.5 CH3C(0)02 + NO -> products 5.3xl0-12 -(360±150) 1.8x10-" 1.4 FO Reactions O + FO —> F + 02 2.7x10-" 0±250 2.7x10-" 3.0 O + F02 -> FO + 02 5.0x10-" 0±250 5.0x10-" 5.0 OH + CH3F -> CH2F + H20 (HFC-41) 3.0xl0-12 1500±300 2.0xl0-14 1.1 OH + CH2F2 -> CHF2 + H20 (HFC-32) 1.9xl0"12 1550±200 l.OxlO-14 1.2 OH + CHF3 -> CF3 + H20 (HFC-23) l.OxlO-12 2440±200 2.8xl0-16 1.3 OH + CF3OH -> CF30 + H20 <2xl0-17 OH + CH3CH2F -> products (HFC-161) 7.0xl0-12 1100±300 1.7xl0-13 1.4 OH + CH3CHF2 -> products (HFC-152a) 2.4xl0-12 1260±200 3.5xl0-14 1.2 OH + CH2FCH2F -> CHFCH2F (HFC-152) + H20 1.7x10-" 1500±500 l.lxlO-13 2.0 OH + CH3CF3 -> CH2CF3 + H20 (HFC-143a) 1.8xl0-12 2170±150 1.2xl0-15 1.1 OH + CH2FCHF2 -> products (HFC-143) 4.0xl0-12 1650±300 1.6xl0-14 1.5 OH + CH2FCF3 -> CHFCF3 + H20 (HFC-134a) 1.5xl0-12 1750±200 4.2xl0-15 1.1 OH + CHF2CHF2 -> CF2CHF2(HFC-134) + H20 1.6xl0-12 1680±300 5.7xl0-15 2.0 OH + CHF2CF3 -> CF2CF3 + H20 (HFC-125) 5.6xl0-13 1700±300 1.9xl0-15 1.3 OH + CH3OCHF2 -> products (HFOC-152a) 6.0xl0-12 1530±150 3.5xl0-14 1.2 OH + CF3OCH3 -> CF3OCH2 + H20 (HFOC-143a) 1.5xl0-12 1450±150 1.2xl0-14 1.1 OH + CF2HOCF2H -> CF2OCF2H (HFOC-134) + H20 1.9xl0"12 2000±150 2.3xl0-15 1.2 OH + CF3OCHF2 -> CF3OCF2+ H20 (HFOC-125) 4.7xl0-13 2100±300 4.1xl0-16 1.2 OH + CF3CH2CH3 -> products (HFC-263fb) - - 4.2xl0-14 1.5 OH + CH2FCF2CHF2 -> products (HFC-245ca) 2.4xl0-12 1660±150 9.1xlO-15 1.3 OH + CHF2CHFCHF2 -> products (HFC-245ea) - - 1.6xl0-14 2.0 OH + CF3CHFCH2F -> products (HFC-245eb) - - 1.5xl0-14 2.0 OH + CHF2CH2CF3 -> products (HFC-245fa) 6.1xl0-13 1330±150 7.0xl0-15 1.2 Chemical Kinetic Data for Stratospheric Modeling 5-211 A EIR k (298 K) Reaction cm3 molecule 1 s 1 K cm3 molecule 1 s 1 OH + CF3CF2CH2F -> CF3CF2CHF (HFC-236cb) +H20 1.5xl0-12 1750±500 4.2xl0-15 2.0 OH + CF3CHFCHF2 -> products (HFC-236ea) l.lxlO"12 1590±150 5.3xl0-15 1.1 OH + CF3CH2CF3 -> CF3CHCF3 (HFC-236fa) +H20 1.3xl0"12 2480±150 3.2xl0-16 1.1 OH + CF3CHFCF3 -> CF3CFCF3+H20 (HFC-227ea) 5.0xlO-13 1700±300 1.7xl0-15 1.1 OH + CHF2OCH2CF3 -> products (HFOC-245fa) 2.6xl0-12 1610±150 1.2xl0-14 2.0 OH + CF3CH2CF2CH3 -> products (HFC-365mfc) 2.0xl0-12 1750±200 5.7xl0-15 1.3 OH + CF3CH2CH2CF3 -> products (HFC-356mff) 3.0xl0-12 1800±300 7.1xl0-15 1.3 OH + CF3CF2CH2CH2F -> products (HFC-356mcf) 1.7xl0"12 1110±200 4.2xl0-14 2.0 OH + CHF2CF2CF2CF2H -> products (HFC-338pcc) 7.8xl0-13 1530±200 4.6xl0-15 1.5 OH + CF3CH2CF2CH2CF3 -> products (HFC-458mfcf) 1.2xl0"12 1830±200 2.6xl0-15 2.0 OH + CF3CHFCHFCF2CF3 -> products (HFC-43-10mee) 5.2xl0-13 1500±300 3.4xl0-15 1.3 OH + CF3CF2CH2CH2CF2CF3 -> (HFC-55-lO-mcff) products - - 8.3xl0-15 1.5 F + 03^FO + 02 2.2x10-" 230±200 1.0x10-" 1.5 F + H2 -> HF + H 1.4xl0-10 500±200 2.6x10-" 1.2 F + H20 -> HF + OH 1.4x10-" 0±200 1.4x10-" 1.3 F + HN03 -> HF + N03 6.0xl0-12 -(400±200) 2.3x10-" 1.3 F + CH4 -> HF + CH3 1.6xl0-10 260±200 6.7x10-" 1.4 FO + 03 —> products N02 + F 8.2xl0-12 -(300±200) 2.2x10-" 1.5 FO + FO -> 2 F + 02 1.0x10-" 0±250 1.0x10-" 1.5 F02 + 03 —> products <3.4xl0-16 F02 + NO -> FNO + 02 7.5xl0-12 690±400 7.5xl0-13 2.0 F02 + N02 —> products 3.8x10-" 2040±500 4.0xl0-14 2.0 F02 + CO —> products <5.1xlO-16 F02 + CH4 -> products <2xl0-16 CF30 + 02^F02 + CF20 <3xl0-" 5000 <1.5xlO-ls CF30 + 03^CF302 + 02 2xl0-12 1400±600 1.8xl0-14 1.3 CF30 + H20 -> OH + CF3OH 3xl0-12 >3600 <2xl0-17 CF30 + NO -> CF20 + FNO 3.7x10-" -(110±70) 5.4x10-" 1.2 CF30 + N02 -> products See reference CF30 + CO -> products <2xl0-15 CF30 + CH4 -> CH3 + CF3OH 2.6xl0-12 1420±200 2.2xl0-14 1.1 CF O + C,H -> C,H5 + CFOH 4.9xl0-12 400±100 1.3xl0-12 1.2 CF302 + 03^CF30 + 202 <3xl0-15 CF302 + CO -> CF30 + C02 <5xlO-16 CF302 + NO -> CF30 + N02 5.4xl0-12 -(320±150) 1.6x10-" 1.1 CIO Reactions O + CIO -> CI + o2 3.0x10-" -(70±70) 3.8x10-" 1.2 O + OCIO -> CIO + o2 2.4xl0-12 960±300 l.OxlO-13 2.0 o + ci2o -> CIO + CIO 2.7x10-" 530±150 4.5xl0-12 1.3 O + HC1 -> OH + CI 1.0x10-" 3300±350 1.5xlO-16 2.0 O + HOC1 -> OH + CIO 1.7xl0"13 0±300 1.7xl0-13 3.0 O + C10N02^> products 2.9xl0-12 800±200 2.0xl0-13 1.5 03 + OCIO -> products 2.1xl0-12 4700±1000 3.0xl0-19 2.5 03 + C1202 —> products - - <1.0xl0-19 - OH + Cl2 -> HOC1 + CI 1.4xl0-12 900±400 6.7xl0-14 1.2 OH + CIO -> products 1.1x10-" -(120±150) 1.7x10-" 1.5 OH + OCIO -> HOC1 + 02 4.5xl0-13 -(800±200) 6.8xl0-12 2.0 OH + HC1 -> H20 + CI 2.6xl0-12 350±100 8.0xlO-13 1.2 OH + HOC1 -> H20 + CIO 3.0xl0-12 500±500 5.0xlO-13 3.0 OH + C1N02 -> HOC1 + N02 2.4xl0-12 1250±300 3.6xl0-14 2.0 OH + C10N02-> products 1.2xl0-12 330±200 3.9xl0-13 1.5 OH + CH3C1 -> CH2C1 + H20 4.0xl0-12 1400±250 3.6xl0-14 1.2 OH + CH2C12 -> CHC12 + H20 3.8xl0-12 1050±150 l.lxlO-13 1.4 OH + CHC13 -> CC13 + H20 2.0xl0-12 900±150 l.OxlO-13 1.2 OH + CC14 —> products -l.OxlO-12 >2300 <5.0xlO-16 - OH + CFC13^ products (CFC-11) -l.OxlO-12 >3700 <5.0xlO-ls - OH + CF2C12 -> products (CFC-12) -l.OxlO-12 >3600 <6.0xl0-ls - OH + CH2C1F -> CHC1F + H20 (HCFC-31) 2.8xl0-12 1270±200 3.9xl0-14 1.2 5-212 Chemical Kinetic Data for Stratospheric Modeling Reaction OH + CHFC12 -> CFC12 + H20 (HCFC-21) OH + CHF2C1 -> CF2C1 + H20 (HCFC-22) OH + CH3OCl -> products OH + CH3CC13 -> CH2CC13 + H20 (HCC-140) OH + C2HC13 -> products OH + C2C14 -> products OH + CCl3CHO -> H20 + CCl3CO OH + CH3CFC12 -> CH2CFC12 + H20 (HCFC-141b) OH + CH3CF2C1 -> CH2CF2C1 + H20 (HCFC-142b) OH + CH2C1CF2C1 -> CHC1CF2C1 (HCFC-132b) + H20 OH + CHC12CF2C1 -> CC12CF2C1 (HCFC-122) + H20 OH + CHFC1CFC12 -> CFC1CFC12 (HCFC-122a) + H20 OH + CH2C1CF3 -> CHC1CF3 + H20 (HCFC-133a) OH + CHC12CF3 -> CC12CF3 + H20 (HCFC-123) OH + CHFC1CF2C1 -> CFC1CF2C1 (HCFC-123a) + H20 OH + CHFC1CF3 -> CFC1CF3 + H20 (HCFC-124) OH + CH3CF2CFC12 -> products (HCFC-243cc) OH + CF3CF2CHC12 -> products (HCFC-225ca) OH + CF2C1CF2CHFC1 -> products (HCFC-225cb) H02 + CI -> HC1 + 02 -> OH + CIO H02 + CIO -> HOC1 + 02 H20 + C10N02 -> products NO + OCIO -> N02 + CIO NO + C1202 -> products N03 + HC1 -> HN03 + CI H02N02 + HC1 -> products CI + 03 -> CIO + o2 CI + H2 -> HC1 + H CI + H202 -> HC1 + H02 CI + N03 -> CIO + N02 CI + N20 -> CIO + N2 CI + HN03 -> products CI + CH4 -> HC1 + CH3 CI + CH3D -> products CI + H2CO -> HC1 + HCO CI + CH302 -> products C1+ CH3OH -> CH2OH+ HC1 CI + C2H6 -> HC1 + C2H5 CI + C2H502 -> CIO + C2HsO -» HC1 + C2H402 CI + CH3CN -> products CI + CH3C03N02^ products CI + C3HS -> HC1 + C3H7 CI + OCIO -> CIO + CIO CI + ClOO -> Cl2 + o2 -> CIO + CIO CI + ci2o -> Cl2 + CIO CI + C1202 —> products Cl + HOC1 -> products Cl + C1NO -> NO + Cl2 CI + C10N02 -> products Cl + CH3C1 -> CH2C1 + HC1 C1+ CH2C12 -> HC1 + CHC12 C1+CHC13^HC1 + CC13 C1+ CH3F -> HC1 + CH2F (HFC-41) C1+ CH2F2 -> HC1 + CHF2 (HFC-32) C1+ CF3H -> HC1 + CF3 (HFC-23) C1+ CH2FC1 -> HC1 + CHFC1 (HCFC-31) C1+ CHFC12 -> HC1 + CFC12 (HCFC-21) A EIR k (298 K) molecule 1 s 1 K cm3 molecule 1 s 1 y(298) 1.7xl0-12 1250±150 2.6xl0-14 1.2 l.OxlO"12 1600±150 4.7xl0-15 1.1 2.4xl0-12 360±200 7.2xl0-13 3.0 1.8xl0"12 1550±150 l.OxlO-14 1.1 4.9xl0-13 -(450±200) 2.2xl0-12 1.25 9.4xl0-12 1200±200 1.7xl0-13 1.25 8.2xl0-12 600±300 l.lxlO-12 1.5 1.7xl0"12 1700±150 5.7xl0-15 1.2 1.3xl0"12 1800±150 3.1xlO-15 1.2 3.6xl0-12 1600±400 1.7xl0-14 2.0 l.OxlO"12 900±150 4.9xl0-14 1.2 l.OxlO"12 1250±150 1.5xl0-14 1.1 5.2xl0-13 1100±300 1.3xl0-14 1.3 7.0xl0-13 900±150 3.4xl0-14 1.2 9.2xl0-13 1280±150 1.3xl0-14 1.2 8.0xlO-13 1350±150 8.6xl0-15 1.2 7.7xl0-13 1700±300 2.6xl0-15 2.0 l.OxlO-12 1100±200 2.5xl0-14 1.3 5.5xlO-13 1250±200 8.3xl0-15 1.3 1.8x10-" -(170±200) 3.2x10-" 1.5 4.1x10-" 450±200 9.1xl0-12 2.0 4.8xl0-13 -(700±) 5.0xlO-12 1.4 - - <2.0xl0-21 - 2.5xl0-12 600±300 3.4xl0-13 2.0 - - <2.0xl0-14 - - - <5.0xl0-17 - - - <1.0xl0-21 - 2.9x10-" 260±100 1.2x10-" 1.15 3.7x10-" 2300±200 1.6xl0-14 1.25 1.1x10-" 980±500 4.1xl0-13 1.5 2.4x10-" 0±400 2.4x10-" 1.5 •ee reference - - <2.0xl0-16 - 1.1x10-" 1400±150 l.OxlO-13 1.1 - - 7.4xl0-14 2.0 8.1x10-" 30±100 7.3x10-" 1.15 - - 1.6xl0-10 1.5 5.4x10-" 0±250 5.4x10-" 1.5 7.7x10-" 90±90 5.7x10-" 1.1 - - 7.4x10-" 2.0 - - 7.7x10-" 2.0 1.6x10-" 2140±300 1.2xl0-14 2.0 - - HC1 + CF2C1 (HCFC-22) 5.9xl0-12 2430±200 1.7xl0-15 1.3 CI + CH3CC13 -> CH2CC13 + HC1 2.8xl0-12 1790±400 7.0xl0-15 2.0 CI + CH3CH2F -> HC1 + CH3CHF (HFC-161) 1.8x10-" 290±500 6.8xl0-12 3.0 -> HC1 + CH2CH2F 1.4x10-" 880±500 7.3xl0-13 3.0 CI + CH3CHF2 -> HC1 + CH3CF2 (HFC-152a) 6.4xl0-12 950±500 2.6xl0-13 1.3 -> HC1 + CH2CHF2 7.2xl0-12 2390±500 2.4xl0-15 3.0 CI + CH2FCH2F -> HC1 + CHFCH2F (HFC-152) 2.6x10-" 1060±500 7.5xl0-13 3.0 CI + CH3CFC12 -> HC1 + CH2CFC12 (HCFC-141b) 1.8xl0-12 2000±300 2.2xl0-15 1.2 CI + CH3CF2C1 -> HC1 + CH2CF2C1 (HCFC-142b) 1.4xl0-12 2420±500 4.2xl0-16 1.2 CI + CH3CF3 -> HC1 + CH2CF3 (HFC-143a) 1.2x10-" 3880±500 2.6xl0-17 5.0 CI + CH2FCHF2 -> HC1 + CH2FCF2 (HFC-143) 5.5xl0-12 1610±500 2.5xl0-14 3.0 -> HC1 + CHFCHF2 7.7xl0-12 1720±500 2.4xl0-14 3.0 C1+ CH2C1CF3 -> HC1 + CHC1CF3(HCFC-I33a) 1.8xl0-12 1710±500 5.9xl0-15 3.0 CI + CH2FCF3 -> HC1 + CHFCF3 (HFC-134a) - - 1.5xlO-15 1.2 CI + CHF2CHF2 -> HC1 + CF2CHF2(HCF-134) 7.5xl0-12 2430±500 2.2xl0-15 1.5 C1+ CHC12CF3 -> HC1 + CC12CF3(HCFC-123) 4.4xl0-12 1750±500 1.2xl0-14 1.3 C1+ CHFC1CF3 -> HC1 + CFC1CF3(HCFC-124) l.lxlO-12 1800±500 2.7xl0-15 1.3 C1+ CHF2CF3 -> HC1 + CF2CF3(HFC-125) - - 2.4xl0-16 1.3 CIO + o3 -> ClOO + o2 - - <1.4xl0-17 - -> ocio + o2 l.OxlO"12 >4000 <1.0xl0-ls - CIO + H2 -> products -l.OxlO-12 >4800 <1.0xl0-19 - CIO + NO -> N02 + CI 6.4xl0-12 -(290±100) 1.7x10-" 1.15 CIO+N03^ ClOO+ N02 4.7xl0-13 0±400 4.7xl0-13 1.5 CIO + N20 -> products -l.OxlO-12 >4300 <6.0xl0-19 - CIO + CO -> products -l.OxlO-12 >3700 <4.0xlO-ls - CIO + CH4 -> products -l.OxlO-12 >3700 <4.0xlO-ls - CIO + H2CO -> products -l.OxlO-12 >2100 <1.0xl0-15 - CIO + CH302 -> products 3.3xl0-12 115±115 2.2xl0-12 1.5 CIO + CIO -> Cl2 + o2 l.OxlO-12 1590±300 4.8xl0-15 1.5 -> ClOO + CI 3.0x10-" 2450±500 8.0xlO-15 1.5 -> OCIO + CI 3.5xl0-13 1370±300 3.5xl0-15 1.5 HC1 + C10N02 -> products - - <1.0xl0-20 - CH2C10 + 02^ CHCIO + H02 - - 6xl0-14 5 CH2C102 + H02 -> CH2C102H + 02 3.3xl0-13 -(820±200) 5.2xl0-12 1.5 CH2C102 + NO -> CH2C10 + N02 7xl0-12 -(300±200) 1.9x10-" 1.5 CC1302 + NO -> CC120 + N02 + CI 7.3xl0-12 -(270±200) 1.8x10-" 1.3 CC12F02+ NO -> CC1FO + N02 + CI 4.5xl0-12 -(350±200) 1.5x10-" 1.3 CC1F202 + NO -> CF20 + N02 + CI 3.8xl0-12 -(400±200) 1.5x10-" 1.2 BrO Reactions O + BrO -> Br + 02 1.9x10-" -(230±150) 4.1x10-" 1.5 O + HBr -> OH + Br 5.8xl0-12 1500±200 3.8xl0-14 1.3 O + HOBr -> OH + BrO 1.2xl0-10 430±300 2.8x10-" 3.0 OH + Br2 -> HOBr + Br 4.2x10-" 0±600 4.2x10-" 1.3 OH + BrO -> products - - 7.5x10-" 3.0 OH + HBr -> H20 + Br 1.1x10-" 0±250 1.1x10-" 1.2 OH + CH3Br -> CH2Br + H20 4.0xl0-12 1470±150 2.9xl0-14 1.1 OH + CH2Br2 -> CHBr2 + H20 2.4xl0-12 900±300 1.2xl0-13 1.1 OH + CHBr3 -> CBr3 + H20 1.6xl0-12 710±200 1.5xlO-13 2.0 OH + CHF2Br -> CF2Br + H20 l.lxlO-12 1400±200 l.OxlO-14 1.1 OH + CH2ClBr -> CHClBr + H20 2.3xl0-12 930±150 l.OxlO-13 1.2 OH + CF2ClBr -> products - - <1.5xlO-16 - OH + CF2Br2 -> products - - <5.0xlO-16 - OH + CF3Br -> products - - <1.2xl0-16 - OH + CH2BrCF3 -> CHBrCF3 + H20 1.4xl0-12 1340±200 1.6xl0-14 1.3 OH + CHFBrCF3 -> CFBrCF3 7.2xl0-13 1110±150 1.8xl0-14 1.5 OH + CHClBrCF3 -> CClBrCF3 + H20 1.3xl0-12 995±150 4.5xl0-14 1.5 OH + CF2BrCHFCl -> CF2BrCFCl + H20 9.3xl0-13 1250±150 1.4xl0-14 1.5 OH + CF2BrCF2Br -> products - - <1.5xlO-16 - H02 + Br -> HBr + 02 1.5x10-" 600±600 2.0xl0-12 2.0 5-214 Chemical Kinetic Data for Stratospheric Modeling A EIR k (298 K) Reaction cm3 molecule 1 s 1 K cm3 molecule 1 s 1 H02 + BrO -> products 3.4xl0-12 -(540±200) 2.1x10-" 1.5 N03 + HBr -> HN03 + Br - - <1.0xl0-16 - CI + CH2ClBr -> HC1 + CHClBr 4.3x10-" 1370±500 4.3xl0-13 3.0 CI + CH3Br -> HC1 + CH2Br 1.5x10-" 1060±100 4.3xl0-13 1.2 CI + CH2Br2 -> HC1 + CHBr2 6.4xl0-12 810±100 4.2xl0-13 1.2 Br + 03 -> BrO + 02 1.7x10-" 800±200 1.2xl0-12 1.2 Br + H202 -> HBr + H02 1.0x10-" >3000 <5.0xlO-16 - Br + N03 -> BrO + N02 - - 1.6x10-" 2.0 Br + H2CO -> HBr + HCO 1.7x10-" 800±200 l.lxlO-12 1.3 Br + OCIO -> BrO + CIO 2.6x10-" 1300±300 3.4xl0-13 2.0 Br + C120 -> BrCl + CIO 2.1x10-" 470±150 4.3xl0-12 1.3 Br + C1202 —> products - - 3.0xl0-12 2.0 BrO + 03 —> products ~1.0xl0-12 >3200 <2.0xl0-17 - BrO + NO -> N02 + Br 8.8xl0-12 -(260±130) 2.1x10-" 1.15 BrO + N03 -> products - - l.OxlO-12 3.0 BrO + CIO -> Br + OCIO 1.6xl0-12 -(430±200) 6.8xl0-12 1.25 -> Br + ClOO 2.9xl0-12 -(220±200) 6.1xl0-12 1.25 -> BrCl + 02 5.8xl0-13 -(170±200) l.OxlO"12 1.25 BrO + BrO —> products 1.5xl0-12 -(230±150) 3.2xl0-12 1.15 CH2Br02 + NO -> CH20 + N02+ Br 4xl0-12 -(300±200) 1.1x10-" 1.5 IO Reactions O + I2 -> IO + I 1.4xl0-10 0±250 1.4xl0-10 1.4 O + IO -> o2 + I 1.2xl0-10 2.0 OH + I2 -> HOI + I 1.8xl0-10 2.0 OH + HI -> H20 + I 3.0x10-" 2.0 OH + CH3I -> H20 + CH2I 3.1xl0-12 1120±500 7.2xl0-14 3.0 OH + CF3I^HOI + CF3 3.1xl0-14 5.0 H02 + I -> HI + 02 1.5x10-" 1090±500 3.8xl0-13 2.0 H02 + IO -> HOI + 02 8.4x10-" 1.5 N03 + HI -> HN03 + I See reference i + o3^io + o2 2.3x10-" 870±200 1.2xl0-12 1.2 I + BrO -> io + Br - - 1.2x10-" 2.0 io + NO -> I + N02 9.1xl0-12 -(240±150) 2.0x10-" 1.2 io + CIO -> products 5.1xlO-12 -(280±200) 1.3x10-" 2.0 io + BrO —> products - - 6.9x10-" 1.5 io + io —> products 1.5x10-" -(500±500) 8.0x10-" 1.5 ino + ino -> I2 + 2NO 8.4x10-" 2620±600 1.3xl0-14 2.5 IN02 + IN02 -> I2 + 2N02 2.9x10-" 2600±1000 4.7xl0-15 3.0 SO Reactions O + SH -> SO + H - - 1.6xl0-10 5.0 O + CS -> CO + S 2.7xl0-10 760±250 2.1x10-" 1.1 O + H2S -> OH + SH 9.2xl0-12 1800±550 2.2xl0-14 1.7 O + OCS -> CO + SO 2.1x10-" 2200±150 1.3xl0-14 1.2 O + CS2 -> CS + SO 3.2x10-" 650±150 3.6xl0-12 1.2 O + CH3SCH3 -> CH3SO + CH3 1.3x10-" -(410±100) 5.0x10-" 1.1 O + CH3SSCH3^ CH3SO + CH3S 5.5x10-" -(250±100) 1.3xl0-10 1.3 03 + H2S —> products - - <2.0xl0-20 - 03 + CH3SCH3 -> products - - <1.0xl0-ls - o3 + So2^so3 + o2 3.0xl0-12 >7000 <2.0xl0-22 - OH + H2S -> SH + H20 6.0xl0-12 75±75 4.7xl0-12 1.2 OH + OCS -> products l.lxlO"13 1200±500 1.9xl0-15 2.0 OH + CS2 —> products See reference - - - OH + CH3SH -> CH3S + H20 9.9xl0-12 -(360±100) 3.3x10-" 1.2 OH + CH3SCH3 -> H20 + CH2SCH3 1.2x10-" 260±100 5.0xlO-12 1.15 OH + CH3SSCH3 -> products 6.0x10-" -(400±200) 2.3xl0-10 1.2 OH + S -> H + SO - - 6.6x10-" 3.0 OH + SO -> H + S02 - - 8.6x10-" 2.0 H02 + H2S -> products - - <3.0xl0-15 - Chemical Kinetic Data for Stratospheric Modeling 5-215 A EIR k (298 K) Reaction cm3 molecule 1 s 1 K cm3 molecule 1 s 1 /(298) H02 + CH3SH -> products - - <4.0xl0"15 - H02 + CH3SCH3 -> products - - <5.0xl015 - H02 + S02 -> products - - <1.0xl0"18 - N02 + S02 -> products - - <2.0xlO-K - N03+ H2S -> products - - <8.0xl0-16 - N03 + OCS -> products - - <1.0xl0-16 - N03 + CS2 —> products - - <4.0xl0"16 - N03 + CH3SH^ products 4.4xl0-13 -(210±210) 8.9xl0"13 1.25 N03 + CH3SCH3-> CH3SCH2 + HN03 1.9xl0-13 -(500±200) l.OxlO"12 1.2 N03 + CH3SSCH3^ products 1.3xl012 270+270 5.3xl013 1.4 N03 + S02 -> products - - <7.0xl0"21 - N2Os + CH3SCH3 -> products - - <1.0xl0-17 - CH302 + S02 -> products - - <5.0xl0-17 - F + CH3SCH3 -> products - - 2.4.x 10-10 2.0 C1 + H2S^HC1 + SH 3.7x10-" -(210±100) 7.4x10-" 1.25 CI + OCS —> products - - <1.0xl0-16 - CI + CS2 —> products - - <4.0xl0"15 - C:l + CH3SH -> CH3S + HC1 1.2xl01G -(150±50) 2.0xl0-10 1.25 CI + CH3SCH3 -> products See reference - - - CIO + OCS -> products - - <2.0xl0"16 - CIO + CH3SCH3 products - - 9.5xl0-15 2.0 CIO + SO ^ ci +so2 2.8x10-" 0±50 2.8x10-" 1.3 CIO + so2 CI + so3 - - <4.0xl0-18 - Br + H2S —> HBr + SH 1.4x10-" 2750±300 1.4xl015 2.0 Br + CH3SH -> CH3S + HBr 9.2xl012 390±100 2.5xl012 2.0 Br + CH3SCH3 -> products See reference BrO + CH3SCH3 products 1.5xl0-14 -(850±200) 2.6xl0'13 1.3 BrO + SO Br + S02 5.7x10-" 1.4 IO + CH3SH -> products 6.6xl0-16 2.0 IO + CH3SCH3 products 1.2xl0-14 1.5 s + o2 SO + O 2.3xl0-12 0±200 2.3xl0-12 1.2 s + o3 -> so + o2 1.2x10" 2.0 so + o2->so2+o 2.6xl013 2400±500 8.4xl0"17 2.0 so + o3^so2 + o2 3.6xl0-12 1100±200 9.0xl0-14 1.2 SO + N02^S02+NO 1.4x10-" 0±50 1.4x10'" 1.2 SO + ocio so2 + CIO 1.9xl0-12 3.0 SOs + H20-> products See reference - - S03 + N02 -> products l.OxlO-19 10.0 SH + 02 ^ OH + SO <4.0xl019 - SH + 03 -> HSO + 02 9.0xl012 280±200 3.5xl012 1.3 SH + H202-> products <5.0xl0"15 - SH + N02^HSO + NO 2.9x10-" -(240±50) 6.5x10-" 1.2 SH + Cl2 C1SH + CI 1.7x10-" 690±200 1.7xl0-12 2.0 SH + BrCl —> products 2.3x10-" -(350±200) 7.4x10-" 2.0 SH + Br2 BrSH + Br 6.0x10-" -(160±160) l.OxlO-10 2.0 SH + F2 -> FSH + F 4.3x10-" 1390±200 4.0xl0-13 2.0 HSO + 02 -> products <2.0xl0"17 - HSO + 03 -> products l.OxlO"13 1.3 HSO + NO -> products <1.0xl015 - HSO + N02^HS02+NO 9.6xl0-12 2.0 HS02 + 02^H02+S02 3.0xl0-13 3.0 HOS02 + 02 ^ H02 + S03 1.3xl0-12 330±200 4.4xl0-13 1.2 cs + o2 OCS + O 2.9xl0-19 2.0 cs + o3^ocs + o2 3.0xl0-16 3.0 CS + N02->OCS + NO 7.6xl017 3.0 CH3S + 02—> products <3.0xl0"18 - CH3S + 03 —> products 2.0xl0-12 -(290±100) 5.3xl0-12 1.15 CH3S + NO -> products <1.0xl0-13 - CH3S + N02^ CH3SO + NO 2.1x10-" -(320±100) 6.1x10-" 1.15 CH2SH + 02 -> products 6.5xl0-12 2.0 5-216 Chemical Kinetic Data for Stratospheric Modeling Reaction CH2SH + 03 -> products CH2SH + NO -> products CH2SH + N02 -> products CH3SO + 03 -> products CH3SO + N02^ CH3S02 + NO CH3SOO + 03 -> products CH3SOO + NO -> products CH3S02+ N02 -> products CH3SCH2 + N03 -> products CH3SCH202 + NO -> CH3SCH20 + N02 CH3SS + 03 —> products CH3SS + N02^ products CH3SSO + N02^ products Metal Reactions Na + 03 -> NaO + 02 -> Na02 + O Na + N20 -> NaO + N2 Na + Cl2 -> NaCl + CI NaO + O -> Na + 02 NaO + 03 -> Na02 + 02 -> Na + 202 NaO + H2 —> NaOH + H NaO + H20 -> NaOH + OH NaO + NO -> Na + N02 NaO + HC1 -> products Na02 + O^ NaO + 02 Na02 + NO^ NaO + N02 Na02 + HCl-> products NaOH + HC1 -> NaCl + HO cm3 molecule 1 s 1 EIR K l.lxlO-11 2.2x10-" l.OxlO"9 2.8xl0-10 7.3xl0-10 3.7xl0-10 1.1x10-' 6.0x10-" 2.6x10-" 2.2xl0-10 1.5xl0-10 2.8xl0-10 2.2x10-" 2.3xl0-10 2.8xl0-10 0±100 0±100 95±50 1600±400 0±200 0±400 570±300 0±800 0±600 0±400 0±400 0±400 0±600 0±400 0±400 k (298 K) cm3 molecule 1 s 1 3.5x10-" 1.9x10-" 5.2x10-" 6.0xl0-13 1.2x10-" <8.0xl0-13 1.1x10-" 2.2x10-" 3.0xl0-10 1.9x10-" 4.6xl0-13 1.8x10-" 4.5xl0-12 7.3xl0-10 <4.0xl0-" 1.3xl0-12 7.3xl0-10 3.7xl0-10 1.6xl0-10 6.0x10-" 2.6x10-" 2.2xl0-10 1.5xl0-10 2.8xl0-10 2.2x10-" H202 (6.2±1.2) (- -31) 1.0 (2.6±1.0) :-n) 0±0.5 NO Reactions O + NO -> N02 (9.0±2.0) ( -32) 1.5±0.3 (3.0±1.0) :-n) 0±1.0 O + N02 -> N03 (9.0±1.0) ( -32) 2.0±1.0 (2.2±0.3) :-n) 0±1.0 OH + NO -> HONO (7.0±1.0) ( -31) 2.6±0.3 (3.6±1.0) :-n) 0.1±0.5 OH + N02^HN03 (2.5±0.1) (- -30) 4.4±0.3 (1.6±0.2) :-n) 1.7±0.2 H02 + N02 -> H02N02 (1.8±0.3) ( -31) 3.2±0.4 (4.7±1.0) ;-i2) 1.4±1.4 N02 + N03^N205 (2.2±0.5) (- -30) 3.9±1.0 (1.5±0.8) ;-i2) 0.7±0.4 N03 ^NO + 02 See reference Hydrocarbon Reactions CH3 + 02^CH302 (4.5±1.5) (- -31) 3.0±1.0 (1.8±0.2) •-12) 1.7±1.7 C2H5 + 02^C2H502 (1.5±1.0) ( -28) 3.0±1.0 (8.0±1.0) ;-i2) 0±1.0 Chemical Kinetic Data for Stratospheric Modeling 5-217 Low pressure limit High pressure limit K(T) = ^„(300) (T/300) " cm6 molecule 2 s 1 Ar„ (T) = Jt„ (300) (27300)- * cm3 molecule Reaction ^„(300) n K (30°) m OH + C2H2^HOCHCH (5.5±2.0) (-30) 0.0±0.2 (8.3±1.0) (-13) -2 OH + C2H4^HOCH2CH2 (1.0±0.6) (-28) 0.8±2.0 (8.8±0.9) (-12) 0 CH30 + NO^ CH3ONO (1.4±0.5) (-29) 3.8±1.0 (3.6±1.6) (-11) 0.6±1.0 CH30 + N02 -> CH3ON02 (1.1±0.4) (-28) 4.0±2.0 (1.6±0.5) (-11) 1.0±1.0 C2HsO + NO -> C2H5ONO (2.8±1.0) (-27) 4.0±2.0 (5.0±1.0) (-11) 1.0±1.0 C2HsO+N02^C2H5ON02 (2.0±1.0) (-27) 4.0±2.0 (2.8±0.4) (-11) 1.0±1.0 CH302 + N02^CH302N02 (1.5±0.8) (-30) 4.0±2.0 (6.5±3.2) (-12) 2.0±2.0 CH3C(0)02 + N02 -> CH3C(0)02N02 (9.7±3.8) (-29) 5.6±2.8 (9.3±0.4)(-12) 1.5±0.3 FO Reactions F+*02-»F02 (4.4±0.4) (-33) 1.2±0.5 - - F + NO -> FNO (1.8±0.3) (-31) 1.0±10 (2.8±1.4) (-10) 0.0±1.0 F+N02 -^FN02 (6.3±3.0) (-32) 2.0±2.0 (2.6±1.3) (-10) 0.0±1.0 FO + N02 -> FON02 (2.6±2.0) (-31) 1.3±1.3 (2.0±1.0) (-11) 1.5±1.5 CF3+02^CF302 (3.0±0.3) (-29) 4.0±2.0 (4.0±1.0) (-12) 1.0±1.0 CF30 + N02 -> CF3ON02 See reference CF302 + N02CF302N02 (2.2±0.5) (-29) 5.0±1.0 (6.0±1.0) (-12) 2.5±1.0 CF30 + CO -> CF3OCO (2.5±0.2) (-31) - (6.8±0.4) (-14) -1.2 CF30 -> CF20 + F See reference CIO Reactions CI + o2 -> ClOO (2.7±1.0) (-33) 1.5±0.5 - - CI + NO -> C1NO (9.0±2.0) (-32) 1.6±0.5 - - CI + N02 ClONO -> (1.3±0.2) (-30) 2.0±1.0 (1.0±0.5) (-10) 1.0±1.0 C1N02 (1.8±0.3) (-31) 2.0±1.0 (1.0±0.5) (-10) 1.0±1.0 CI + CO -> C1CO (1.3±0.5) (-33) 3.8±0.5 - - C1 + C2H2^ C1C2H2 ((5.9±1.0) (-30) 2.1±1.0 (2.1±0.4) (-10) 1.0±0.5 C1 + C2H4^ C1C2H4 (1.6±1) (-29) 3.3±1.0 (3.1±2) (-10) 1.0±0.5 C1 + C2C14^ C2C15 (1.4±0.6) (-28) 8.5±1.0 (4.0±1.0) (-11) 1.2±0.5 CIO + N02 -> C10N02 (1.8±0.3) (-31) 3.4±1.0 (1.5±0.7) (-11) 1.9±1.9 OCIO + N03 -> 02C10N02 See reference CIO + CIO -> ci2o2 (2.2±0.4) (-32) 3.1±0.5 (3.5±2) (-12) 1.0±1.0 CIO + OCIO -> ci2o3 (6.2±1.0) (-32) 4.7±0.6 (2.4±1.2) (-11) 0±1.0 OCIO + o -> cio3 (1.9±0.5) (-31) 1.1±1.0 (3.1±0.8) (-11) 0±1.0 CH2C1 + 02 -> CH2C102 (1.9±0.1) (-30) 3.2±0.2 (2.9±0.2) (-12) 1.2±0.6 CHC12 + 02 -> CHC1202 (1.3±0.1) (-30) 4.0±0.2 (2.8±0.2) (-12) 1.4±0.6 CCi3 + o2^ cci3o2 (6.9±0.2) (-31) 6.4±0.3 (2.4±0.2) (-12) 2.1±0.6 CFCl2+02^ CFC1202 (5.0±0.8) (-30) 4.0±2.0 (6.0±1.0) (-12) 1.0±1.0 CF2Cl+02^ CF2C102 (3.0±1.5) (-30) 4.0±2.0 (3±2) (-12) 1.0±1.0 CC1302+N02^ CC1302N02 (5.0±1.0) (-29) 5.0±1.0 (6.0±1.0) (-12) 2.5±1.0 CFC1202 + N02^ CFC1202N02 (3.5±0.5) (-29) 5.0±1.0 (6.0±1.0) (-12) 2.5±1.0 CF2C102 + N02^ CF2C102N02 (3.3±0.7) (-29) 6.7±1.3 (4.1±1.9) (-12) 2.8±0.7 BrO Reactions Br + N02 -> BrN02 (4.2±0.8) (-31) 2.4±0.5 (2.7±0.5) (-11) 0±1.0 BrO + N02 -> BrON02 (5.2±0.6) (-31) 3.2±0.8 (6.9±1.0) (-12) 2.9±1.0 IO Reactions I + NO -> INO (1.8±0.5) (-32) 1.0±0.5 (1.7±1.0) (-11) 0±1.0 I + N02 -> IN02 (3.0±1.5) (-31) 1.0±1.0 (6.6±5.0) (-11) 0±1.0 IO + N02 -> ION02 (5.9±2.0) (-31) 3.5±1.0 (9.0±1.0) (-12) 1.5±1.0 SO Reactions HS + NO -> HSNO (2.4±0.4) (-31) 3.0±1.0 (2.7±0.5) (-11) 0 CH3S +NO -> CH3SNO (3.2±0.4) (-29) 4.0±1.0 (3.9±0.6) (-11) 2.7±1.0 o + so2^ so3 (1.3±)(-33) -3.6±0.7 OH + S02^ HOS02 (3.0±1.0) (-31) 3.3±1.5 (1.5±0.5) (-12) 0 CH3SCH2 + 02^ CH3SCH202 See reference S03 + NH3 -> H3NS03 (3.9±0.8) (-30) 3.0±3.0 (4.7±1.3) (-11) 0±1.0 5-218 Chemical Kinetic Data for Stratospheric Modeling MT) Reaction Low pressure limit ■■ ft„(300) (17300)- cm6 molecule 2s 1 fc(300) « kAT) High pressure limit K (300) (r/300) "cm3 molecule 1 s 1 K (30°) Metal Reactions Na + 02 -> Na02 NaO + 02 -> Na03 NaO + C02 -> NaC03 NaOH + CO, -> NaHCO, (3.2±0.3) (-30) (3.5±0.7) (-30) (8.7±2.6) (-28) (1.3±0.3) (-28) 1.4±0.3 2.0±2.0 2.0±2.0 2.0±2.0 (6.0±2.0) (-10) (5.7±3.0) (-10) (6.5±3.0) (-10) (6.8±4.0) (-10) 0±1.0 0±1.0 0±1.0 0±1.0 TABLE 3. Equilibrium Constants K(T)lcm3molecule-1 = A exp (BIT) [200 < T/K < 300] Reaction A /cm3 molecule 1 BIK K (298 K) /(298 K) H02 + N02 -> H02N02 2.1xl0-27 10900±1000 1.6x10-" 5 NO + N02 N203 3.3xl0-27 4667±100 2.1xl0-20 2 N02 + N02^N204 5.2xl0-29 6643±250 2.5xl0-19 2 N02 + N03^N205 2.7xl0-27 11000±500 2.9x10-" 1.3 CH302 + N02^CH302N02 I.3xl0-2S 11200±1000 2.7xl0-12 2 CH3C(0)02 + N02 -> CH3C(0)02N02 9.0xl0-29 14000±200 2.3xl0-s 2 F + 02 —> FOO 3.2xl0-25 6100±1200 2.5xl0-16 1.0 CI + o2 -> ClOO 5.7xl0-25 2500±750 2.5xl0-21 2 CI + CO -> C1CO 1.6xl0-25 4000±500 l.lxlO-19 5 CIO + o2 -> cioo2 2.9xl0-26 <3700 <7.2xl0-21 - CIO + CIO -> ci2o2 1.3xl0-27 8744±850 7.2xl0-15 1.5 CIO + ocio -> ci2o3 l.lxlO-24 5455±300 9.8xl0-17 3 OCIO + N03 -> 02C10N02 lxlO-28 9300±1000 3.6xl0-15 5 OH + CS2 -> CS2OH 4.5xl0-25 5140±500 1.4xl0-17 1.4 CH3S + 02^CH3S02 1.8xl0-27 5545±300 2.2xl0-19 1.4