Perchloroethylene
Synonyms: perchloroethene, tetrachloroethene, tetrachloroethylene, may also be referred to as “Perc” PCE is an organic chemical introduced in the environment by human activity. Specifically, it is a widely used solvent, especially in dry cleaning activities.
What is the difference between Trichloroethylene and Tetrachloroethylene?
Tetrachloroethylene is a chlorocarbon with the formula Cl₂C=CCl₂. It is a colorless liquid widely used for dry cleaning of fabrics, hence it is sometimes called “dry-cleaning fluid”. The chemical compound trichloroethylene is a halocarbon commonly used as an industrial solvent.
Why is Tetrachloroethylene used in dry cleaning?
Tetrachloroethylene is an excellent solvent for organic materials. Otherwise it is volatile, highly stable, and nonflammable. For these reasons, it is widely used in dry cleaning. It is also used to degrease metal parts in the automotive and other metalworking industries, usually as a mixture with other chlorocarbons.
How is Perchloroethylene metabolized?
Oxidation of TCE and PCE occurs on the double bond via cytochrome P450s (CYPs) to form an epoxide intermediate, which is subsequently metabolized to oxidative species, including trichloroacetic acid (TCA) and/or TCE-specific metabolite trichloroethanol (TCOH) (Cichocki et al., 2016).
What does PCE mean?
personal consumption expenditures
The term personal consumption expenditures (PCEs) refers to a measure of imputed household expenditures defined for a period of time. Personal consumption expenditures support the reporting of the PCE Price Index, which measures price changes in consumer goods and services exchanged in the U.S. economy.
What does the acronym PCE stand for?
PCE
| Acronym | Definition |
|---|---|
| PCE | Personal Consumption Expenditures |
| PCE | Professional Continuing Education |
| PCE | Perchloroethylene (CAS Number 127-18-4) |
| PCE | Process Control Equipment (various locations) |
What is PCE vapor?
PCE is a liquid at room temperature, but easily transitions to a volatile vapor form. In soil. and/or ground water, the chemical can move away from contamination sources via spaces in. between soil particles and reach overlying structures due to concentration and pressure.
Is tetrachloroethylene an organic compound?
tetrachloroethylene, also called perchloroethylene, a colourless, dense, nonflammable, highly stable liquid belonging to the family of organic halogen compounds.
What is c2 cl4?
Tetrachloroethylene – C2Cl4 Tetrachloroethylene is a volatile chlorinated organic hydrocarbon that is widely used as a solvent with the chemical formula C2Cl4. It is non-flammable liquid at room temperature, evaporates easily into the air and has a sharp sweet odour.
Can you smell PCE?
PCE has a sharp, sweet, ether-like odor which can be detected at concentrations as low as 1 ppm. PCE is an industrial chlorinated solvent that is also widely used in metal cleaning, degreasing, paint strippers, and spot removers.
When was PCE used?
The first widespread use of PCE was in the dry cleaning industry in the late 1930s. Production of PCE increased during the 1950s. Throughout the 1950s, about 80% of PCE was used for dry cleaning and 15% for metal cleaning and degreasing.
What is tetrachloroethylene used for?
Tetrachloroethene is a manufactured chemical that is widely used in the dry-cleaning of fabrics, including clothes. It is also used for degreasing metal parts and in manufacturing other chemicals.
What is the general description of PCE?
General Description/Properties. PCE is a halogenated organic compound composed of 2 atoms of carbon and 4 atoms of chlorine (two chlorine atoms linked to each carbon). The two carbons are linked with each other by a double chemical bond.
What is the solubility of PCE in water?
PCE is also a VOC and a dense, non-aqueous phase liquid. PCE has the chemical formula C 2 Cl 4. PCE has a density of 1.6227 g/ml at 20 o C, a solubility in water of 150 mg/L at 25 o C), and it adsorbs onto carbon (K oc = 2.2-2.7). PCE has a vapor pressure of 18.47 mmHg and a Henry’s law constant of 0.018 atm-m 3 /mol.
What are the signs and symptoms of PCE poisoning?
1 Central nervous system damage (for exposure to more than 100 ppm pf PCE): – Unconsciousness – Difficulty in walking and speaking – Nausea – Vomiting 2 Death from respiratory depression (ingestion of more than 1,500 ppm of PCE) 3 Death (within 4 hours) – by ingestion of 2,600-4,000 ppm PCE (experiments with rats)
What is tetrachloroethylene PCE used for?
Tetrachloroethylene (PCE) Tetrachloroethylene (PCE) is a nonflammable, liquid solvent widely used in dry cleaning, wood processing, fabric manufacturing, and metal degreasing. In homes, it may be found in suede protectors, paint removers, furniture stripper, water repellents, silicone lubricants, spot removers, glues, and wood cleaners.
