pyrosulfuric acid

pyrosulfuric acid
an oily, hygroscopic, corrosive liquid, H2S2O7, that, depending on purity, is colorless or dark brown: used chiefly as a dehydrating agent in the manufacture of explosives and as a sulfating or sulfonating agent in the manufacture of dyes. Also called fuming sulfuric acid, oleum.
[1870-75]

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Universalium. 2010.

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  • pyrosulfuric acid — [pī΄rə sul fyoor′ikas′id] n. [ PYRO + SULFURIC] a strong, crystalline acid, H2S2O7, prepared commercially as a heavy, oily, fuming liquid: used in making explosives and dyes, as a sulfating agent, etc …   English World dictionary

  • pyrosulfuric acid — pirosieros rūgštis statusas T sritis chemija formulė H₂S₂O₇ atitikmenys: angl. disulfuric acid; pyrosulfuric acid rus. дисерная кислота; пиросерная кислота ryšiai: sinonimas – disulfato rūgštis sinonimas – vandenilio μ okso( )heksaoksodisulfatas… …   Chemijos terminų aiškinamasis žodynas

  • pyrosulfuric acid — “+... noun Etymology: International Scientific Vocabulary pyr + sulfuric : 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 …   Useful english dictionary

  • pyrosulfuric acid — noun The acid, HSO, formed by the reaction of sulfur trioxide with sulfuric acid; used in the manufacture of explosives etc. Syn: fuming sulfuric acid, oleum See Also: pyrosulfate …   Wiktionary

  • pyrosulfuric — /puy roh sul fyoor ik/, adj. Chem. of or derived from pyrosulfuric acid; disulfuric. Also, pyrosulphuric. [1870 75; PYRO + SULFURIC] * * * …   Universalium

  • pyrosulfuric — adjective of, or relating to pyrosulfuric acid or its derivatives …   Wiktionary

  • pyrosulfuric — /puy roh sul fyoor ik/, adj. Chem. of or derived from pyrosulfuric acid; disulfuric. Also, pyrosulphuric. [1870 75; PYRO + SULFURIC] …   Useful english dictionary

  • Disulfuric acid — Disulfuric acid …   Wikipedia

  • fuming sulfuric acid — noun : oleum 2 * * * fuming sulfuric acid, = pyrosulfuric acid. (Cf. ↑pyrosulfuric acid) …   Useful english dictionary

  • di|sul|fu|ric acid — «DY suhl FYUR ihk», = pyrosulfuric acid. (Cf. ↑pyrosulfuric acid) …   Useful english dictionary

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