Written by the Fiveable Content Team • Last updated September 2025
Verified for the 2026 exam
Verified for the 2026 exam•Written by the Fiveable Content Team • Last updated September 2025
Definition
PCl5, also known as phosphorus pentachloride, is a covalent compound composed of one phosphorus atom bonded with five chlorine atoms. It is commonly used as an intermediate in various chemical reactions and as a chlorinating agent.
Related terms
Phosphorus Trichloride (PCl3): A covalent compound containing one phosphorus atom bonded with three chlorine atoms.
Phosphorus Dichloride (PCl2): A covalent compound containing one phosphorus atom bonded with two chlorine atoms.
Chlorinating Agent: A substance that introduces chlorine atoms into a compound by replacing other elements or functional groups.