Use of Environmental Forensics In Drycleaning Investigations

Metal Cleaning v. Dry Cleaning (a)Metal Cleaning Traditionally contained a higher concentrationof additives than most dry cleaning grades. Classes include acidacceptors, antioxidants, and UV stabilizers. Antioxidants includeamine or phenolic compounds 50 – 200 ppm and acid acceptorsepoxide 0.2-0.7%. Early PCE formulations included alkylaminesand other hydrocarbons. Later stabilizers included morpholinederivatives, epoxides, esters and phenols.Dry Cleaning Traditionally contained a high concentration ofadditives, usually of a high purity and different types of additives.DOWPER-C-S contains a water soluble detergent, a corrosioninhibitor, an anti-static compound, “hand agent” compounds, anda fatty acid scavenger.