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Tert-Butyl alcohol

Names Preferred IUPAC name2-Methylpropan-2-olOther names t-Butyl alcoholtert-Butanolt-ButanolTrimethyl carbinolTertiary butanol2-Methyl-2-propanol2M2PIdentifiers CAS Number75-65-03D model (JSmol)Interactive imageAbbreviations Me3COHt-BuOHtBuOHBuOH Beilstein Reference906698 ChEBICHEBI:45895ChEMBLChEMBL16502ChemSpider6146DrugBankDB03900ECHA InfoCard100.000.809EC Number200-889-7Gmelin Reference1833 MeSHtert-Butyl+AlcoholPubChemCID6386RTECS numberEO1925000UNIIMD83SFE959UN number1120 CompTox Dashboard(EPA)DTXSID8020204InChIInChI=1S/C4H10O/c1-4(2,3)5/h5H,1-3H3Key: DKGAVHZHDRPRBM-UHFFFAOYSA-NSMILESCC(C)(C)OProperties Chemical formulaC4H10OMolar mass74.123 g·mol Appearance Colorless solid OdorCamphorous Density0.775 g/mL Melting point25 to 26 °C; 77 to 79 °F; 298 to 299 K Boiling point82 to 83 °C; 179 to 181 °F; 355 to 356 K Solubility in watermiscible SolubilityMiscible with ethanol and diethyl etherlog P0.584 Vapor pressure4.1 kPa (at 20 °C) Acidity (pKa) 16.54 Magnetic susceptibility (χ)5.742×10 cm/molRefractive index (nD)1.387 Dipole moment1.31 D Thermochemistry Heat capacity(C)215.37 J/(K·mol) Std molarentropy(S298)189.5 J/(K·mol) Std enthalpy offormation(ΔfH298)−360.04 to −358.36 kJ/mol Std enthalpy ofcombustion(ΔcH298)−2.64479 to −2.64321 MJ/mol Hazards GHS labelling: PictogramsSignal wordDangerHazard statementsH225, H319, H332, H335Precautionary statementsP210, P261, P305+P351+P338NFPA 704 (fire diamond) 230Flash point11 °C (52 °F; 284 K) Autoignitiontemperature480 °C (896 °F; 753 K) Explosive limits2.4–8.0% Lethal dose or concentration (LD, LC): LD50 (median dose)3559 mg/kg (rabbit, oral)3500 mg/kg (rat, oral) NIOSH (US health exposure limits): PEL (Permissible)TWA 100 ppm (300 mg/m) REL (Recommended)TWA 100 ppm (300 mg/m) ST 150 ppm (450 mg/m) IDLH (Immediate danger)1600 ppm Safety data sheet (SDS) inchem.orgRelated compounds Related butanols2-Butanoln-ButanolIsobutanolRelated compounds2-Methyl-2-butanolTrimethylsilanolNonafluoro-tert-butyl alcoholExcept where otherwise noted, data are given for materials in their standard state (at 25 °C [77 °F], 100 kPa).Yverify ( ?)

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