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Accessibility information
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)COOHBenzaldehyde + CO + H2O
Reaction order:   1
Temperature:   583 - 613 K
Pressure:  2.03E-2 - 6.95E-2 bar
Rate expression:   2.5x1012 [±1.5x1012 s-1] e-170100 [±3200 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 authors do not specifically list rate parameters for this channel although it is the primary pathway (approximately 90% of reaction). Rate constants for this reaction were derived by us as the difference between those for the overall reaction [C6H5CH(OH)COOH -> PRODUCTS] and those given for the secondary channel [C6H5CH(OH)COOH -> C6H5CH2OH + CO2]. Rate parameters were then derived by us from a least squares analysis of these 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 1.45E-3
600 3.89E-3
613 8.08E-3