phosphorus heptasulfide

noun

phosphorus hep·​ta·​sulfide
-¦heptə+
: a yellow crystalline compound P4S7 made by heating a mixture of phosphorus and sulfur in a ratio of about 4 to 7 equivalents, regarded formerly as a trisulfide, and used chiefly in the synthesis of organic sulfur compounds (as thiophene); tetra-phosphorus heptasulfide

Word History

Etymology

heptasulfide from hepta- + sulfide

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Dictionary Entries Near phosphorus heptasulfide

Cite this Entry

“Phosphorus heptasulfide.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/phosphorus%20heptasulfide. Accessed 22 Apr. 2024.

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