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Tetrachloroethylene, also known as perchloroethylene [a] or under the systematic name tetrachloroethene, and abbreviations such as perc (or PERC), and PCE, is a chlorocarbon with the formula Cl 2 C=CCl 2. It is a non-flammable, stable, colorless and heavy liquid widely used for dry cleaning of fabrics.
The exposure to tetrachloroethylene in a typical dry cleaner is considered far below the levels required to cause any risk. [11] It is estimated that 50% to 70% of dry cleaners in the US were using PCE as of 2012. [7] Alternative solvents are available, but these may require major changes in equipment, procedures, and operator training. [7]
Two carcinogenic chemicals used in cleaning products and other common household goods have been banned in the U.S., the Environmental Protection Agency (EPA) announced in a Dec. 9 press release ...
Tetrachloroethylene carbonate is a carbonate ester with the chemical formula C 2 Cl 4 O 2 CO. It is produced by the photochlorination of ethylene carbonate. It has been used as precursor for oxalyl chloride. [3] Tetrachloroethylene carbonate acts as a Lewis base and it forms a complex with the Lewis acid antimony pentachloride. [4]
Dry cleaning refers to any process which uses a chemical solvent other than water. [12] The solvent used is typically tetrachloroethylene (perchloroethylene), which the industry calls "perc". [ 13 ] [ 14 ] It is used to clean delicate fabrics that cannot withstand the rough and tumble of a washing machine and clothes dryer ; it can also obviate ...
Tetrachloroethylene oxide, perchloroethylene oxide (PCEO) or tetrachlorooxirane, is the perchlorinated analogue of ethylene oxide and a proposed metabolite of tetrachloroethylene. [3] It is a halogenated epoxide with the formula C 2 Cl 4 O. Tetrachloroethylene oxide is fairly stable but rearranges to trichloroacetyl chloride at higher ...
log 10 of Tetrachloroethylene vapor pressure. Uses formula: log e P m m H g = {\displaystyle \scriptstyle \log _{e}P_{mmHg}=} log e ( 760 101.325 ) − 6.665868 log e ( T + 273.15 ) − 6530.97 T + 273.15 + 60.47398 + 3.522382 × 10 − 6 ( T + 273.15 ) 2 {\displaystyle \scriptstyle \log _{e}({\frac {760}{101.325}})-6.665868\log _{e ...
[6] [7] Trichloroethylene (TCE) and tetrachloroethylene (PCE) are two examples of such pollutants, and their degradation has been a focus of research. [6] [7] [10] PCE is an alkyl solvent that was previously used in dry cleaning, degreasing machinery and other applications. [6] [7] It remains a common contaminant of groundwater.