Chemical Properties of 2-Butyn-1-ol (CAS 764-01-2)


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InChI Key
Molecular Weight1
Other Names
  • But-2-yn-1-ol
  • 2-Butynol
  • 2-Butynyl alcohol
  • CH3C«equiv»CCH2OH
  • 2-Butyne-1-ol

Physical Properties

Property Value Unit Source
Δf 48.78 kJ/mol Joback Calculated Property
Δfgas -5.82 kJ/mol Joback Calculated Property
Δfus 13.33 kJ/mol Joback Calculated Property
Δvap 43.33 kJ/mol Joback Calculated Property
IE 9.78 eV NIST
log10WS -0.56 Crippen Calculated Property
logPoct/wat 0.002 Crippen Calculated Property
McVol 64.490 ml/mol McGowan Calculated Property
Pc 5486.97 kPa Joback Calculated Property
Inp [695.00; 695.00]   Show Hide
Inp 695.00 NIST
Inp 695.00 NIST
Tboil [414.00; 415.70] K Show Hide
Tboil 415.70 K NIST
Tboil 415.00 K NIST
Tboil 414.00 ± 2.00 K NIST
Tc 577.58 K Joback Calculated Property
Tfus 301.76 K Joback Calculated Property
Vc 0.240 m3/kmol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [108.41; 137.70] J/mol×K [392.10; 577.58] Show Hide
Cp,gas 108.41 J/mol×K 392.10 Joback Calculated Property
Cp,gas 113.75 J/mol×K 423.01 Joback Calculated Property
Cp,gas 118.91 J/mol×K 453.93 Joback Calculated Property
Cp,gas 123.87 J/mol×K 484.84 Joback Calculated Property
Cp,gas 128.66 J/mol×K 515.75 Joback Calculated Property
Cp,gas 133.27 J/mol×K 546.67 Joback Calculated Property
Cp,gas 137.70 J/mol×K 577.58 Joback Calculated Property

Pressure Dependent Properties

Property Value Unit Pressure (kPa) Source
Tboilr [325.70; 362.00] K [1.90; 13.30] Show Hide
Tboilr 325.70 K 1.90 NIST
Tboilr 362.00 K 13.30 NIST

Similar Compounds

2-Butyne-1,4-diol. 2,4-Hexadiyne-1,6-diol. 2-Pentyn-1-ol. Propargyl alcohol. 2-Butynoic acid. 2-Butyn-1-yl chloroformate. But-2-yn-1-yl radical. 2-Butyne. 3-Pentyn-2-ol. Acetonitrile, hydroxy-. 2-Hexyn-1-ol. 1,6-Dioxacyclodeca-3,8-diyne. Carbonic acid, di(but-2-yn-1-yl) ester. 2-Butyne, 1-chloro-. 2-Butynal.

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