Kinetics Database Logo

Kinetics Database Resources

Simple Reaction Search

Search Reaction Database

Search Bibliographic Database

Set Unit Preferences

Feedback

Rate Our Products and Services

Help


Other Databases

NIST Standard Reference Data Program

NIST Chemistry Web Book

NDRL-NIST Solution Kinetics Database

NIST Computational Chemistry Comparison and Benchmark Database

The NIST Reference on Constants, Units, and Uncertainty

More...


Administrative Links

NIST home page

MML home page

Chemical and Biochemical Reference Data Division

MML home page

Chemical and Biochemical Reference Data Division

  NIST Logo Home
©NIST, 2013
Accessibility information
Author(s):   Mueller, M.A.; Yetter, R.A.; Dryer, F.L.
Title:   Kinetic Modeling of the CO/H2O/O2/NO/SO2 System: Implications for High-Pressure Fall-off in the SO2+O(+M) + SO3(+M)
Journal:   Int J. Chem. Kinet.
Volume:   32
Page(s):   317 - 339
Year:   2000
Reference type:   Journal article
Squib:   2000MUE/YET317-339

Reaction:   SO2 + SO3
Reaction order:   1
Temperature:   950 - 1040 K
Pressure:  0.51 - 10.13 bar
Rate expression:   9.2x1010 [s-1] e-9958 [J/mole]/RT
Bath gas:   N2
Category:  Experiment
Data type:   Derived from fitting to a complex mechanism
Pressure dependence:   Rate constant is pressure dependent
Experimental procedure:   Flow tube - Data taken vs distance
Excitation technique:   Thermal
Time resolution:   By end product analysis
Analytical technique:   Fourier transform (FTIR)
Comments:   Turbulent flow reactorlow pressure limit used to go with experimentally determinedhigh pressure limit (Fc=1)SO2+O+M=SO3+M 4.0x10e28T-4exp(-5250/RT)cm6/mol2s2collision efficiency for N2 =1 Ar =.75 CO2=3.8 CO=1.9 H2=2.5 H20=12

View full bibliographic record.


Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [s-1]
950 2.61E10
975 2.69E10
1000 2.78E10
1025 2.86E10
1040 2.91E10