Tetrachloroethylene is a commonly used chemical solvent that is also known as perchloroethylene or simply PCE. Some other synonyms for tetrachloroethylene include tetrachloroethene, perchloroethene, and carbon tetrachloride. This colorless liquid is widely used in dry cleaning, metal degreasing, and the manufacturing of other chemicals. However, it is also considered a potential contaminant of groundwater and soil due to its toxic properties. Therefore, it is important to handle and dispose of tetrachloroethylene with care and in accordance with regulations. If you work with this chemical or encounter it in your environment, be sure to take appropriate safety precautions to protect yourself and others.