Phosphorus pentachloride

Rarity: Uncommon

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Notion

Domain

Science and technology

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What Wikipedia says

Phosphorus pentachloride is the chemical compound with the formula PCl5. It is one of the most important phosphorus chlorides/oxychlorides, others being PCl3 and POCl3. PCl5 finds use as a chlorinating reagent.

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

Image: Benjah-bmm27, Public domain, via Wikimedia Commons.