Reaction between chlorocarbon vapors and sodium carbonate

The kinetics of the reactions between tetrachloromethane (CCl4), 1,2-dichlo roethane (C2H4Cl2), Or chlorobenzene (C6H5Cl) and sodium carbonate were inv estigated using evolved gas analysis-fourier transform infrared spectroscop y. Sodium carbonate reacted with CCl4 between 600 and 900 K to form over 90 % carbon dioxide (CO2) and less than 10% tetrachloroethene (C2Cl4) This rea ction followed the three-dimensional diffusion mechanism and had an activat ion energy of 105 +/- 10 kJ/ mol and a steric factor of 5000 +/- 3000 min(- 1). The reaction between C2H4Cl2 and sodium carbonate produced CO2, ethanal (C2H4O), water (H2O), vinyl chloride (C2H3Cl), ethene (C2H4), and ethyne ( C2H2) between 600 and 900 K from at least two different pathways. The produ ct temperature profiles indicated that CO2, C2H4O, and C2H3Cl were formed i nitially and that approximately 10% of the product is C2H4 at 900 K. The re action kinetics followed the Ginstling-Brounshtein diffusion mechanism and had an activation energy of 100 +/- 10 kJ/ mol and a steric factor of appro ximately 10(4) min(-1). Benzene was produced from the reaction between chlo robenzene and sodium carbonate attemperatures above 800 K. This reaction fo llowed the three-dimensional diffusion mechanism and had an activation ener gy of 80 +/- 10 kJ/mol and a steric factor of approximately 500 min(-1).