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  • 1
    Electronic Resource
    Electronic Resource
    Pressure dependence of the absolute rate constant for the reaction Cl+C2H2 from 210–361 K (1985)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 83 (1985), S. 1005-1009 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The pressure dependence of the absolute rate constant for the reaction Cl+C2H2 →M ClC2H2 has been examined at four temperatures ranging from 210–361 K using the flash photolysis-resonance fluorescence (FP-RF) techniques. The data has been fitted to the Troe expression to determine the values of the low pressure, three body rate coefficient k0, and the high pressure limiting bimolecular rate coefficient k∞ at each temperature. The temperature dependence of k0 is given by (3.15±0.30)×10−21 T−3.50±0.05 cm6 s−1 and for k∞ by (1.52±0.15)×10−4 T−2.63±0.05 cm3 s−1. The implication of these results for upper atmospheric chemistry is briefly discussed.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.449463
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  • 2
    Electronic Resource
    Electronic Resource
    Determinations of the rate constants of the reactions Cl + N"3Cl and N"3 + NO at 295 K
    Amsterdam : Elsevier
    Chemical Physics Letters 106 (1984), S. 337-341 
    Details
    ISSN: 0009-2614
    Source: Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://linkinghub.elsevier.com/retrieve/pii/0009-2614(84)80308-5
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  • 3
    Electronic Resource
    Electronic Resource
    Rate constant for the reaction SO+BrO→SO2+Br (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 85 (1986), S. 2591-2594 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The rate of the radical–radical reaction SO+BrO→SO2+Br has been determined at 298 K in a discharge flow system near 1 Torr pressure with detection of SO and BrO via collision-free sampling mass spectrometry. The rate constant was determined using two different methods: measuring the decay of SO radicals in the presence of an excess of BrO and measuring the decay of BrO radicals in excess SO. The results from the two methods are in reasonable agreement and the simple mean of the two values gives the recommended rate constant at 298 K, k=(5.7±2.0) ×10−11 cm3 s−1. This represents the first determination of this rate constant and it is consistent with a previously derived lower limit based on SO2 formation. Comparison is made with other radical–radical reactions involving SO or BrO. The reaction SO+BrO→SO2+Br is of interest for models of the upper atmosphere of the Earth and provides a potential coupling between atmospheric sulfur and bromine chemistry.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.451066
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  • 4
    Electronic Resource
    Electronic Resource
    Kinetic studies of the reaction of the SO radical with NO2 and ClO from 210 to 363 K (1986)
    College Park, Md. : American Institute of Physics (AIP)
    The Journal of Chemical Physics 84 (1986), S. 4371-4377 
    Details
    ISSN: 1089-7690
    Source: AIP Digital Archive
    Topics: Physics , Chemistry and Pharmacology
    Notes: The rates of the reactions of the SO radical with NO2 and ClO have been determined in a discharge flow system near 1 Torr pressure with detection of radical and molecular species using collision-free sampling mass spectrometry. The rate constants were determined from the decay of SO radicals in the presence of an excess of NO2 and ClO. The NO2 reaction was studied between 210 and 363 K and found to be temperature invariant: SO+NO2→SO2+NO; k1=(1.37±0.10)×10−11 cm3 s−1. Similarly, the ClO reaction was observed to be independent of temperature in the interval from 248 to 363 K: SO+ClO→SO2+Cl; k2=(3.22±0.48)×10−11 cm3 s−1. Comparison is made with previous studies of these reactions at room temperature and with other radical–radical reactions involving SO or ClO.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1063/1.450059
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  • 5
    Electronic Resource
    Electronic Resource
    Kinetic study of the reactions of diacetylene with atomic oxygen and atomic chlorine (1988)
    s.l. : American Chemical Society
    The @journal of physical chemistry 〈Washington, DC〉 92 (1988), S. 1502-1506 
    Details
    Source: ACS Legacy Archives
    Topics: Chemistry and Pharmacology , Physics
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1021/j100317a025
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  • 6
    Electronic Resource
    Electronic Resource
    Impact of coal combustion waste on the microbiology of a model aquifer (1994)
    Springer
    Water, air & soil pollution 74 (1994), S. 103-120 
    Details
    ISSN: 1573-2932
    Source: Springer Online Journal Archives 1860-2000
    Topics: Energy, Environment Protection, Nuclear Power Engineering
    Notes: Abstract The effects of water infiltration into an alkaline coal combustion waste burial site on the chemical and microbiological aspects of a meso-scale (2.44 m diameter × 4.6 m, height, 65 tonne) model aquifer were analyzed. The spatial and temporal effects of the alkaline leachate on microbial activity, numbers and diversity were examined in the model and compared with uncontaminated control materials. Within the saturated zone below the waste there was a pH gradient from 12.4 at the water table, immediately below the waste, to 6.0 at 3.5 meters from the waste, and elevated levels of arsenic and strontium in the pore waters. Microtox testing of the contaminated pore waters indicated high toxicity (a gamma value of 1 at dilutions of 45 to 110 fold). The leachate contamination was associated with a reduction in bacterial [3H] leucine incorporation from a high of 267 fmol g−1 h−1 in sediments below the contaminant plume to undetectable in the contaminated zone. In comparison, leucine incorporation rates in control column sediments were 899 fmol g−1 h−1. Similar toxic effects were evident in reduced total direct and culturable counts of bacteria. Observations also indicated a reduction in microbial diversity and development of alkaline-tolerant microbial communities. These results indicated that any failure of confinement technologies at disposal sites would adversely affect both the chemistry and microbiology of the underlying saturated zone.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1007/BF01257150
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  • 7
    Electronic Resource
    Electronic Resource
    Kinetics of the reactions of atomic chlorine with methanol and the hydroxymethyl radical with molecular oxygen at 298 K (1988)
    New York, NY : Wiley-Blackwell
    International Journal of Chemical Kinetics 20 (1988), S. 63-74 
    Details
    ISSN: 0538-8066
    Keywords: Chemistry ; Physical Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Notes: The rate constants for the reactions Cl + CH3OD → CH2OD + HCl (1) and CH2OH + O2 → HO2 + H2CO (2) have been determined in a discharge flow system near 1 torr pressure with detection of radical and molecular species using collision-free sampling mass spectrometry. The rate constant k1, determined from the decay of CH3OD in the presence of excess Cl, is (5.1 ± 1.0) × 10-11 cm3 s-1. This is in reasonable agreement with the only previous measurement of k1. The CH2OH radical was produced by reaction (1) and its reaction with O2 was studied by monitoring the decay of the CH2OH radical in the presence of excess O2. The result is k2 = (8.6 ± 2.0) × 10-12 cm3 s-1. Previous estimates of k2 have differed by nearly an order of magnitude, and our value for k2 supports the more recent high values.
    Additional Material: 4 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/kin.550200108
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