• Perchloroethylene, C2Cl4, 127-18-4
• Main use: commercial dry cleaning
• Other uses: degrease of metal parts in the automotive and other metalworking industries; also extensively used as an intermediate in the manufacture of refrigerants such as HFC-134a
• TWA 100ppm
Like many chlorinated hydrocarbons, perchloroethylene is a central nervous system depressant, and inhaling its vapors (particularly in closed, poorly ventilated areas) can cause dizziness, headache and various other medical problems. Perchloroethylene is also a common soil contaminant. Such contamination most often results from spillage, overfilling, or sewer leakage at commercial dry cleaning facilities.