Chemical Properties of 2-Butyne-1,4-diol (CAS 110-65-6)


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InChI Key
Molecular Weight1
Other Names
  • 1,2-Dimethoxyacetylene
  • 1,4-Dihydroxy-2-butyne
  • 2-Butin-1,4-diol
  • 2-Butynediol
  • 2-butyn-1,4-diol
  • 2-butyne, 1,4-diol-
  • But-2-yne-1,4-diol
  • NSC 834
  • UN 2716

Physical Properties

Property Value Unit Source
Δf -88.04 kJ/mol Joback Calculated Property
Δfgas -158.05 kJ/mol Joback Calculated Property
Δfus 17.41 kJ/mol Joback Calculated Property
Δvap 60.01 kJ/mol Joback Calculated Property
log10WS 0.18 Crippen Calculated Property
logPoct/wat -1.026 Crippen Calculated Property
McVol 70.360 ml/mol McGowan Calculated Property
Pc 6318.86 kPa Joback Calculated Property
Tboil [511.00; 511.20] K Show Hide
Tboil 511.00 K NIST
Tboil 511.20 K NIST
Tc 662.26 K Joback Calculated Property
Tfus 362.58 K Joback Calculated Property
Vc 0.260 m3/kmol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [139.52; 166.30] J/mol×K [484.28; 662.26] Show Hide
Cp,gas 139.52 J/mol×K 484.28 Joback Calculated Property
Cp,gas 144.44 J/mol×K 513.94 Joback Calculated Property
Cp,gas 149.17 J/mol×K 543.61 Joback Calculated Property
Cp,gas 153.72 J/mol×K 573.27 Joback Calculated Property
Cp,gas 158.09 J/mol×K 602.94 Joback Calculated Property
Cp,gas 162.28 J/mol×K 632.60 Joback Calculated Property
Cp,gas 166.30 J/mol×K 662.26 Joback Calculated Property
ΔvapH [69.00; 81.50] kJ/mol [298.15; 469.00] Show Hide
ΔvapH 81.50 kJ/mol 298.15 Vaporiz...
ΔvapH 69.00 kJ/mol 469.00 NIST

Pressure Dependent Properties

Property Value Unit Pressure (kPa) Source
Tboilr [418.00; 418.20] K [2.00; 2.00] Show Hide
Tboilr 418.00 K 2.00 NIST
Tboilr 418.20 K 2.00 NIST

Similar Compounds

2-Butyn-1-ol. 2,4-Hexadiyne-1,6-diol. 2-Pentyn-1-ol. Propargyl alcohol. 1,6-Dioxacyclodeca-3,8-diyne. 2-Butynoic acid. Acetonitrile, hydroxy-. 3-Pentyn-2-ol. 2-Butyn-1-yl chloroformate. 2-Hexyn-1-ol. 3-Hexyne-2,5-diol. 2-Butyne-1,4-diol, diacetate. 3-Butyn-1-ol. CH2CH2OH. 3-Hexyn-2-ol.

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