Polychlorinated biphenyl

Rarity: Uncommon

A topic a little better known than average, read and translated beyond its own country.

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Notion

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Science and technology

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What Wikipedia says

Polychlorinated biphenyls (PCBs) are organochlorine compounds with the formula C12H10−xClx. They were once widely used in a range of industrial and consumer electronic products including the manufacture of carbonless copy paper, as heat transfer fluids, and as dielectric and coolant fluids for electrical equipment.

Excerpt from the Wikipedia article “Polychlorinated biphenyl”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: D.328, CC BY-SA 3.0, via Wikimedia Commons.