Enthalpy of VX Hydrolysis in Aqueous Sodium Hydroxide Solution at 90 degrees C
Final rept. May-Jul 2003
EDGEWOOD CHEMICAL BIOLOGICAL CENTER ABERDEEN PROVING GROUND MD RESEARCH AND TECHNOLOGY DIR
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The enthalpy, or heat of reaction, for the hydrolysis of munitions grade VX in aqueous sodium hydroxide at 90 degrees C was determined in a 2-L Mettler RC1 Reaction Calorimeter. Typically, VX with dicyclohexylcarbodiimide DCCDI as a stabilizer was added to the sodium hydroxide solution in the reactor at 11.35 gmin. The average normalized enthalpy for nine reactions was -139.6 kJ SN-1 4.2mol VX. The overall heat transfer coefficient of the final reaction mass was 178.3 Wm2 degrees K SN-1 7.7, and the specific heat capacity was 3.6 kJkg K SN-1 0.2. The thermodynamic quantities were not significantly different than previous reported data.
- Inorganic Chemistry
- Physical Chemistry
- Chemical, Biological and Radiological Warfare