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Heavy-water

Form of waterNames IUPAC name(H2)WaterOther names Deuterium oxideWater-d2Dideuterium monoxideDeuterated waterIdentifiers CAS Number7789-20-03D model (JSmol)Interactive imageChEBICHEBI:41981ChEMBLChEMBL1232306ChemSpider23004ECHA InfoCard100.029.226EC Number232-148-9Gmelin Reference97 KEGGD03703MeSHDeuterium+OxidePubChemCID24602RTECS numberZC0230000UNIIJ65BV539M3CompTox Dashboard(EPA)DTXSID4051243InChIInChI=1S/H2O/h1H2/i/hD2Key: XLYOFNOQVPJJNP-ZSJDYOACSA-NSMILES[2H]O[2H]Properties Chemical formulaD2O Molar mass20.0276 g·mol Appearance Colorless liquid OdorOdorless Density1.107 g mL Melting point3.82 °C; 38.88 °F; 276.97 K Boiling point101.4 °C (214.5 °F; 374.5 K) Solubility in waterMiscible log P−1.38 Refractive index (nD)1.328 Viscosity1.25 mPa s (at 20 °C) Dipole moment1.87 D Hazards NFPA 704 (fire diamond) 100Related compounds Related compoundsDeuterium fluorideNitrogen trideuterideTetradeuteromethaneExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).N ( ?)

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