Kinetics Database Logo

Kinetics Database Resources

Simple Reaction Search

Search Reaction Database

Search Bibliographic Database

Set Unit Preferences


Rate Our Products and Services


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


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):   Lu, C.W.; Wu, Y.J.; Lee, Y.P.; Zhu, R.S.; Lin, M.C.
Title:   Experiments and calculations on rate coefficients for pyrolysis of SO2 and the reaction O plus SO at high temperatures
Journal:   J. Phys. Chem. A
Volume:   107
Page(s):   11020 - 11029
Year:   2003
Reference type:   Journal article
Squib:   2003LU/WU11020-11029

Reaction:   SO2SO +
Reaction order:   2
Temperature:   2188 - 4249 K
Pressure:  1.05E13 - 3.79E13 bar
Rate expression:   4.86x10-9 [±1.31x10-9 cm3/molecule s] e-419465 [±61777 J/mole]/RT
Category:  Experiment
Data type:   Absolute value measured directly
Pressure dependence:   Rate constant is low pressure limit
Experimental procedure:   Shock tube
Excitation technique:   Thermal
Time resolution:   In real time
Analytical technique:   Vis-UV absorption
Comments:   Error limits in Arrhenius expression is 1 sigma.

View full bibliographic record.

Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [cm3/molecule s]
2188 4.71E-19
2200 5.34E-19
2300 1.45E-18
2400 3.61E-18
2500 8.37E-18
2600 1.82E-17
2700 3.73E-17
2800 7.27E-17
2900 1.35E-16
3000 2.42E-16
3100 4.16E-16
3200 6.91E-16
3300 1.11E-15
3400 1.75E-15
3500 2.67E-15
3600 3.99E-15
3700 5.82E-15
3800 8.33E-15
3900 1.17E-14
4000 1.62E-14
4100 2.20E-14
4200 2.95E-14
4249 3.39E-14