pyrosulfuric acid

noun

py·​ro·​sulfuric acid
"+…-
: an unstable, crystalline acid H2S2O7 that is usually handled commercially as a thick oily fuming liquid, that is formed by the union of sulfur trioxide with sulfuric acid, that is a chief component of fuming sulfuric acid, and that is converted to sulfuric acid when mixed with water

called also disulfuric acid

compare oleum

Word History

Etymology

International Scientific Vocabulary pyr- + sulfuric

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Dictionary Entries Near pyrosulfuric acid

Cite this Entry

“Pyrosulfuric acid.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pyrosulfuric%20acid. Accessed 23 Jul. 2024.

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