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Perrhenic acid

Names IUPAC namePerrhenic acidSystematic IUPAC name[Diaquatrioxidorhenium(VII)]-μ-oxido-[trioxidorhenium(VII)]Other names Hydrated rhenium(VII) oxideIdentifiers CAS Number13768-11-13D model (JSmol)aqueous: Interactive imagegaseous: Interactive imageChemSpider21106462ECHA InfoCard100.033.968EC Number237-380-4PubChemCID83718RTECS numberTT4550000CompTox Dashboard(EPA)DTXSID80894065InChIInChI=1S/2H2O.7O.2Re/h2*1H2;;;;;;;;;Key: JOTGKJVGIIKFIQ-UHFFFAOYSA-NInChI=1/2H2O.7O.2Re/h2*1H2;;;;;;;;;/rH4O9Re2/c1-10(2,3)9-11(4,5,6,7)8/h4-5H2Key: JOTGKJVGIIKFIQ-SEUCOXMMABSMILESaqueous: [OH2+][Re-2](=O)(=O)(=O)([OH2+])O[Re](=O)(=O)=Ogaseous: O=[Re](=O)(=O)OProperties Chemical formulaH4Re2O9 (solid)HReO4 (gas) Molar mass251.2055 g/mol Appearance Pale yellow solid Boiling pointsublimes Solubility in waterSoluble Acidity (pKa) −1.25 Conjugate basePerrhenateStructure Coordination geometryoctahedral-tetrahedral (solid)tetrahedral (gas) Hazards Occupational safety and health (OHS/OSH): Main hazardsCorrosive GHS labelling: PictogramsSignal wordDangerHazard statementsH302, H314, H332Precautionary statementsP260, P264, P270, P271, P280, P301+P312, P301+P330+P331, P303+P361+P353, P304+P312, P304+P340, P305+P351+P338, P310, P312, P321, P330, P363, P405, P501NFPA 704 (fire diamond) 3Flash pointNon-flammable Related compounds Related compoundsPerrhenateManganese(VII) oxideTechnetium(VII) oxideRhenium(VII) oxidePermanganic acidPertechnetic acidPerchloric acidExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Nverify ( ?)

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