Talk:Tetrachloroethylene

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add regulatory efforts?[edit]

There is no discussion of regulatory efforts, such as EPA https://www.epa.gov/stationary-sources-air-pollution/dry-cleaning-facilities-national-perchloroethylene-air-emission Thanks.38.105.242.2 (

Interesting thread on the problems with drycleaners esp. in stripmalls, worth linking somehow?: https://twitter.com/realestatetrent/status/1437802803313922051 5.145.10.140 (talk) 17:14, 17 June 2022 (UTC)[reply]

External links modified[edit]

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Discovery[edit]

I have read both Victor Regnault's 1839 report and Faraday's 1820 discovery in his 1850s work and compared 2 compounds that both have discovered via thermal decomposition of hexachloroethane. Whatever Faraday synthesized in 1820,was carbon tetrachloride and not tetrachloroethylene as this article suggests. Faraday mentions that this compound of carbon and chloride did not react with chlorine and boiled at 160~170 degrees Fahrenheit (which are the properties of carbon tet). The other carbon chloride that V. Regnault synthesized in 1839 by the same process did not boil until 120 degrees Celsius. Faraday mentions that his chloride of carbon has a density of 1.55, carbon tetrachloride's density is 1.58 and tetrachloroethylene's is 1.62. Which one sounds closer? Victor Regnault's 1839 chloride of carbon reportedly has a vapour density of 5.83. Remember, he is commonly credited for carbon tetrachloride which has a vapour density of 5.3 and not tetrachloroethylene which has a vapour density of 5.7. 176.88.97.55 (talk) 15:39, 17 January 2023 (UTC)[reply]