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Author(s):   Chuchani, G.; Martin, I.
Title:   ELIMINATION KINETICS OF DL-MANDELIC ACID IN THE GAS PHASE
Journal:   J. Phys. Org. Chem.
Volume:   10
Page(s):   121 - 124
Year:   1997
Reference type:   Journal article
Squib:   1997CHU/MAR121-124

Reaction:   C6H5CH(OH)COOHBenzyl alcohol + CO2
Reaction order:   1
Temperature:   583 - 613 K
Pressure:  2.03E-2 - 6.95E-2 bar
Rate expression:   1.41x1014 [±1.15x1014 s-1] e-202700 [±4600 J/mole]/RT
Category:  Experiment
Data type:   Absolute value measured directly
Pressure dependence:   None reported
Experimental procedure:   Static or low flow - Data taken vs time
Excitation technique:   Thermal
Time resolution:   By end product analysis
Analytical technique:   Pressure measurement
Comments:  
The A-factor given in the paper (1.41x1013 s-1) is one order of magnitude smaller than required to reproduce the reported rate constants, apparently due to a typographical error. The value listed here closely reproduces the actual rate data listed by the authors and our least squares analysis of their reported rate data.

Kinetics were determined by following pressure vs. time. Products were determined by GC product analysis.

Uncertainties are precision only and are at the 90% confidence level.


View full bibliographic record.


Rate constant values calculated from the Arrhenius expression:

T (K)k(T) [s-1]
583 9.84E-5
600 3.18E-4
613 7.61E-4