Chemical decomposition and pressure rise in gaseous and liquid C2Cl3F3 under internal arc stress

Trichlorotrifluoroethane (C2Cl3F3) is a stable molecule up to a temperature of 700°C. Under internal arc stress C2Cl3F3 was decomposed and Phosgene and other products were produced. The amount of produced Phosgene depends on the fed in energy per unit of gas mass and the presence of Oxygen. At the ignition of an arc in liquid C2Cl3F3 a shock-wave with amplitudes of up to 1 MPa occurs dependent on arc current steepness at ignition. After the damping out of the shock-wave, pressure rise in gaseous and liquid C2Cl3F3 is approximately similar and can be calculated with help of the electrical energy fed in.