Perchloroethylene stability with

Tetrachloroethylene [127-18-4] perchloroethylene, CCl2=CCl2, is commonly referred to as "perc" and sold under a variety of trade names. It is the most stable of the chloriaated ethylenes and ethanes, having no flash poiat and requiring only minor amounts of stabilizers. These two properties combiaed with its excellent solvent properties account for its dominant use ia the dry-cleaning iadustry as well as its appHcation ia metal cleaning and vapor degreasiag. 

Certain adhesive materials are hazardous when mixed together. Epoxy and polyester catalysts, especially, must be well understood, and the user should not depart from the manufacturers recommended procedure for handling and mixing. Certain unstabilized solvents, such as trichloroethylene and perchloroethylene, are subject to chemical reaction on contact with oxygen or moisture. Only stabilized grades of solvents should be used. 

D 3316 Stability of Perchloroethylene with Copper D 3446 Water Content of Trichlorotrifluoroethane with Karl... 

As with other chlorinated hydrocarbons containing stabilizers, it is inadvisable to have water in longterm contact with perchloroethylene and when it is being handled in a recovery operation, facilities should exist for detecting water lying as a separate phase on the solvent s surface and removing it if it is found. 

ASTM D 3316-96. Standard test method for stability of perchloroethylene with copper. 

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