Chemical Properties of 1,2-Butanediol (CAS 26171-83-5)

1,2-Butanediol

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InChI
InChI=1S/C4H10O2/c1-2-4(6)3-5/h4-6H,2-3H2,1H3
InChI Key
BMRWNKZVCUKKSR-UHFFFAOYSA-N
Formula
C4H10O2
SMILES
CCC(O)CO
Molecular Weight1
90.12
CAS
26171-83-5
Other Names
  • 1,2-(Dihydroxy)butane
  • 1,2-Butandiol
  • 1,2-Butanediol, (.+/-.)-
  • 1,2-Butylene glycol
  • Butane-1,2-diol
  • DL-1,2-Butanediol
  • Ethylethylene glycol
  • NSC 24242
  • «alpha»-Butylene glycol
Sources

Physical Properties

Property Value Unit Source
Δf -293.28 kJ/mol Joback Calculated Property
Δfgas -435.63 kJ/mol Joback Calculated Property
Δfus 10.77 kJ/mol Joback Calculated Property
Δvap 70.40 ± 0.30 kJ/mol NIST
Δvap 73.30 ± 0.40 kJ/mol NIST
Δvap 71.60 ± 0.80 kJ/mol NIST
logPoct/wat -0.25 Crippen Calculated Property
Pc 5210.00 ± 250.00 kPa NIST
Tboil 464.70 K NIST
Tc 680.00 ± 2.00 K NIST
Tfus 241.48 K Joback Calculated Property
Vc 0.29 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 173.31 J/mol×K 474.84 Joback Calculated Property
η 0.00 Pa×s 474.84 Joback Calculated Property
ΔvapH [40.70; 51.50] kJ/mol [439.00; 439.00] Show Hide
Plot of Enthalpy of vaporization at a given temperature.
ΔvapH 51.50 ± 0.40 kJ/mol 439.0 NIST
ΔvapH 48.90 ± 0.40 kJ/mol 439.0 NIST
ΔvapH 46.30 ± 0.40 kJ/mol 439.0 NIST
ΔvapH 43.60 ± 0.40 kJ/mol 439.0 NIST
ΔvapH 40.70 ± 0.50 kJ/mol 439.0 NIST

Molecular Descriptors

Joback and Reid Groups
>CH- 1
-CH2- 2
-CH3 1
-OH (alcohol) 2

Similar Compounds

1,2-Butanediol. levo-butane-2,3-diol. 2,3-Butanediol, rac. 2,3-Butanediol, (R,S). 2,3-Butanediol, (R,R). meso-2,3-butanediol. 2,3-Butanediol, [R-(R*,R*)]-. 2,3-Butanediol, [S-(R*,R*)]-. DL-2,3-Butanediol. 2,3-Butanediol. HOCH2CH(OH)CH2CH2OH. 1,2-Pentanediol. 1,2,3-Butanetriol. 2,3-Pentanediol. R-(-)-1,2-propanediol.

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