>>1050052
"One possible for PCE: perchloroethylene ("perc" or "PERC")...is a chlorocarbon with the formula Cl2C=CCl2.
...At temperatures over 315 °C (599 °F), such as in welding, tetrachloroethylene can be oxidized into phosgene, an extremely poisonous gas.
...The toxicity of tetrachloroethylene "is moderate to low". "Reports of human injury are uncommon despite its wide usage in dry cleaning and degreasing".[7]
The International Agency for Research on Cancer has classified tetrachloroethylene as a Group 2A carcinogen, which means that it is probably carcinogenic to humans.[8] Like many chlorinated hydrocarbons, tetrachloroethylene is a central nervous system depressant and can enter the body through respiratory or dermal exposure.[9] Tetrachloroethylene dissolves fats from the skin, potentially resulting in skin irritation."
en.wikipedia.org/wiki/Tetrachloroethylene