chloroprene

American  

[klawr-uh-preen, klohr-] / ˈklɔr əˌprin, ˈkloʊr- /

noun

1. a colorless, slightly water-soluble liquid, C 4 H 5 Cl, usually produced by the reaction of vinylacetylene with hydrochloric acid, that polymerizes to neoprene.

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chloroprene British  

/ ˈklɔːrəʊˌpriːn /

noun

1. a colourless liquid derivative of butadiene that is used in making neoprene rubbers; 2-chloro-1,2-butadiene. Formula: CH 2 :CHCCl:CH 2

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Etymology

Origin of chloroprene

First recorded in 1930–35; chloro- ² + (iso)prene

Example Sentences

According to the agency, the proposal would slash ethylene oxide emissions nationwide by about two-thirds and chloroprene by three-quarters from 2020 levels.

From Seattle Times • Apr. 6, 2023

The proposal would also institute new monitoring requirements for ethylene oxide and a host of other chemicals — including chloroprene, benzene, 1,3-butadiene, ethylene dichloride and vinyl chloride, the EPA said.

From Washington Post • Apr. 6, 2023

EPA Administrator Michael Regan announced the plan in St. John the Baptist Parish, Louisiana, home to the Denka chemical plant, which makes synthetic rubber and emits chloroprene, listed as a carcinogen in California.

From Seattle Times • Apr. 6, 2023

The EPA urged state regulators to move students out of St. John the Baptist Parish's Fifth Ward Elementary School, where air monitoring found high levels of chloroprene, a potent carcinogen.

From Salon • Oct. 24, 2022

In 2010, the EPA released a report classifying chloroprene as a "likely human carcinogen."

From Salon • Oct. 24, 2022