Chemical Properties of Propylene oxide (CAS 75-56-9)

Propylene oxide

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InChI
InChI=1S/C3H6O/c1-3-2-4-3/h3H,2H2,1H3
InChI Key
GOOHAUXETOMSMM-UHFFFAOYSA-N
Formula
C3H6O
SMILES
CC1CO1
Molecular Weight1
58.08
CAS
75-56-9
Other Names
  • (.+/-.)-1,2-Epoxypropane
  • (.+/-.)-Methyloxirane
  • 1,2-Epoxypropane
  • 1,2-Propylene oxide
  • 2,3-Epoxypropane
  • 2-Methyl oxirane
  • 2-Methyloxiran
  • 3-Methyl-1,2-epoxypropane
  • AD 6
  • AD 6 (suspending agent)
  • Epihydrin
  • Epoxypropane
  • Ethylene oxide, methyl-
  • Methylethylene oxide
  • Methyloxacyclopropane
  • Methyloxirane
  • NCI-C50099
  • Oxirane, 2-methyl-
  • Oxirane, methyl-
  • Oxyde de propylene
  • Propane, 1,2-epoxy-
  • Propane, epoxy-
  • Propene oxide
  • Propylene epoxide
  • UN 1280
Sources

Physical Properties

Property Value Unit Source
PAff 803.30 kJ/mol NIST
BasG 772.70 kJ/mol NIST
Δcliquid -1917.40 ± 1.10 kJ/mol NIST
Δcliquid -1893.00 kJ/mol NIST
Δcliquid -1885.00 kJ/mol NIST
Δf -50.99 kJ/mol Joback Calculated Property
Δfgas -94.68 ± 0.63 kJ/mol NIST
Δfgas -117.10 kJ/mol NIST
Δfliquid -122.60 ± 0.63 kJ/mol NIST
Δfliquid -145.00 kJ/mol NIST
Δfus 9.64 kJ/mol Joback Calculated Property
Δvap [27.90; 28.31] kJ/mol Show Hide
Δvap 28.31 kJ/mol NIST
Δvap 27.90 kJ/mol NIST
Δvap 27.90 kJ/mol NIST
Δvap 27.90 kJ/mol NIST
IE [10.10; 10.44] eV Show Hide
IE 10.22 ± 0.02 eV NIST
IE 10.10 eV NIST
IE 10.22 ± 0.02 eV NIST
IE 10.44 eV NIST
IE 10.26 eV NIST
logPoct/wat 0.41 Crippen Calculated Property
Pc 5440.00 ± 101.32 kPa NIST
Pc 4922.84 ± 34.47 kPa NIST
gas 287.40 ± 0.84 J/mol×K NIST
liquid 196.27 J/mol×K NIST
liquid 194.60 J/mol×K NIST
Tboil [307.45; 308.20] K Show Hide
Tboil 308.20 K NIST
Tboil 307.70 K NIST
Tboil 307.45 K NIST
Tboil 307.90 ± 1.00 K NIST
Tboil 308.00 ± 1.00 K NIST
Tboil 308.15 ± 1.50 K NIST
Tboil 307.97 ± 0.40 K NIST
Tc 488.20 ± 5.00 K NIST
Tc 482.30 ± 1.00 K NIST
Tfus 161.25 K NIST
Tfus 161.02 ± 0.05 K NIST
Ttriple 161.22 ± 0.05 K NIST
Ttriple 161.25 ± 0.02 K NIST
Ttriple 161.22 ± 0.02 K NIST
Vc 0.20 ± 0.00 m3/kg-mol NIST
Vc 0.19 ± 0.01 m3/kg-mol NIST

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 70.70 J/mol×K 301.73 Joback Calculated Property
Cp,liquid 125.10 J/mol×K 298.15 NIST
Cp,liquid 122.19 J/mol×K 300.0 NIST
η 0.00 Pa×s 301.73 Joback Calculated Property
ΔfusH 6.53 kJ/mol 161.2 NIST
ΔfusH 6.57 kJ/mol 161.3 NIST
ΔvapH [27.35; 32.90] kJ/mol [266.50; 318.50] Show Hide
Plot of Enthalpy of vaporization at a given temperature.
ΔvapH 31.60 kJ/mol 266.5 NIST
ΔvapH 32.90 kJ/mol 274.5 NIST
ΔvapH 30.10 kJ/mol 278.5 NIST
ΔvapH 28.20 kJ/mol 303.5 NIST
ΔvapH 27.35 kJ/mol 307.7 NIST
ΔvapH 28.50 kJ/mol 318.5 NIST
ΔfusS 40.52 J/mol×K 161.22 NIST
ΔfusS 40.74 J/mol×K 161.25 NIST

Molecular Descriptors

Joback and Reid Groups
-O- (ring) 1
-CH3 1
>CH- (ring) 1
-CH2- (ring) 1

Similar Compounds

Oxirane, methyl-, (S)-. Oxirane, 2,3-dimethyl-, trans-. Oxirane, 2,3-dimethyl-, cis-. 2,3-Dimethyloxirane. Butane, 2,3-epoxy, trans-. 2,3-Epoxybutane. Oxirane, 2,2-dimethyl-. Glycidol. Oxiranemethanol, (S)-. Oxirane, ethyl-. Oxiranemethanol, (R)-. Methyl propyl ether. Oxetane. Propane, 2-methoxy-. Oxirane, ethenyl-.

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