Chemical Properties of Ethylene oxide (CAS 75-21-8)

Ethylene oxide

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InChI
InChI=1S/C2H4O/c1-2-3-1/h1-2H2
InChI Key
IAYPIBMASNFSPL-UHFFFAOYSA-N
Formula
C2H4O
SMILES
C1CO1
Molecular Weight1
44.05
CAS
75-21-8
Other Names
  • 1,2-Epoxyaethan
  • 1,2-Epoxyethane
  • Aethylenoxid
  • Amprolene
  • Anprolene
  • Anproline
  • DIHYDROOXIRENE
  • DIMETHYLENE OXIDE
  • E.O.
  • ENT-26263
  • ETO
  • Epoxyethane
  • Ethene oxide
  • Ethyleenoxide
  • Etylenu tlenek
  • FEMA No. 2433
  • Merpol
  • NCI-C50088
  • OXIRANE
  • Oxacyclopropane
  • Oxane
  • Oxidoethane
  • Oxiraan
  • Oxiran
  • Oxirene, dihydro-
  • Oxyfume
  • Oxyfume 12
  • Qazi-ketcham
  • Rcra waste number U115
  • Sterilizing gas ethylene oxide 100%
  • T-Gas
  • UN 1040
  • «alpha»,«beta»-Oxidoethane
  • «alpha»,«beta»-Oxidoethane

Physical Properties

Property Value Unit Source
ω 0.2020 KDB
PAff 774.20 kJ/mol NIST
Tig 702.04 K KDB
BasG 745.30 kJ/mol NIST
Δcgas [-1307.70; -1306.00] kJ/mol Show Hide
Δcgas -1306.00 ± 0.59 kJ/mol NIST
Δcgas -1307.70 ± 0.84 kJ/mol NIST
Δcliquid -1262.90 ± 1.30 kJ/mol NIST
μ 1.90 debye KDB
LFL 3.00 % in Air KDB
UFL 100.00 % in Air KDB
Tflash,cc 255.37 K KDB
Δf -13.10 kJ/mol KDB
Δfgas [-70.20; -52.63] kJ/mol Show Hide
Δfgas -52.67 kJ/mol KDB
Δfgas -52.63 ± 0.63 kJ/mol NIST
Δfgas -70.20 kJ/mol NIST
Δfliquid -95.70 ± 1.30 kJ/mol NIST
Δfus 5.98 kJ/mol Joback Calculated Property
Δvap [25.51; 25.90] kJ/mol Show Hide
Δvap 25.51 kJ/mol NIST
Δvap 25.90 kJ/mol NIST
IE [10.15; 10.60] eV Show Hide
IE 10.56 ± 0.01 eV NIST
IE Outlier 10.15 ± 0.05 eV NIST
IE 10.40 ± 0.10 eV NIST
IE 10.40 eV NIST
IE 10.57 eV NIST
IE 10.60 ± 0.10 eV NIST
IE 10.56 eV NIST
IE 10.56 ± 0.01 eV NIST
IE 10.57 eV NIST
IE 10.57 eV NIST
IE 10.57 ± 0.01 eV NIST
IE 10.57 eV NIST
IE 10.57 eV NIST
IE 10.57 eV NIST
IE 10.57 eV NIST
IE 10.57 eV NIST
log10WS 0.36 Crippen Calculated Property
logPoct/wat 0.017 Crippen Calculated Property
McVol 34.050 ml/mol McGowan Calculated Property
NFPA Fire 4 KDB
NFPA Health 2 KDB
Pc [7190.00; 7233.00] kPa Show Hide
Pc 7190.00 kPa KDB
Pc 7233.00 ± 68.94 kPa NIST
Pc 7191.00 ± 75.84 kPa NIST
ρc [314.10; 319.82] kg/m3 Show Hide
ρc 314.10 ± 10.13 kg/m3 NIST
ρc 319.82 ± 10.13 kg/m3 NIST
Inp [397.00; 417.00]   Show Hide
Inp 397.00 NIST
Inp 410.00 NIST
Inp 417.00 NIST
Inp 417.00 NIST
Inp 405.00 NIST
Inp 405.00 NIST
Inp 400.00 NIST
Inp 400.00 NIST
I 680.00 NIST
liquid 149.45 J/mol×K NIST
Tboil [283.55; 286.15] K Show Hide
Tboil 283.70 K KDB
Tboil 283.70 K NIST
Tboil 283.55 K NIST
Tboil 286.15 ± 1.50 K NIST
Tboil 283.85 ± 0.40 K NIST
Tboil 283.88 ± 0.20 K NIST
Tboil 286.00 ± 4.00 K NIST
Tc [465.20; 469.00] K Show Hide
Tc 469.00 K KDB
Tc 468.90 ± 1.11 K NIST
Tc 469.00 ± 1.00 K NIST
Tc 465.20 ± 2.00 K NIST
Tfus [160.55; 161.90] K Show Hide
Tfus 161.40 K KDB
Tfus 160.55 K NIST
Tfus 160.60 ± 0.07 K NIST
Tfus 161.45 ± 0.40 K NIST
Tfus 161.90 ± 0.60 K NIST
Ttriple [160.65; 160.65] K Show Hide
Ttriple 160.65 ± 0.05 K NIST
Ttriple 160.65 ± 0.02 K NIST
Vc 0.140 m3/kmol KDB
Zc 0.2581350 KDB
Zra 0.26 KDB

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [49.37; 58.41] J/mol×K [307.18; 371.23] Show Hide
Cp,gas 49.37 J/mol×K 307.18 NIST
Cp,gas 53.51 J/mol×K 337.04 NIST
Cp,gas 58.41 J/mol×K 371.23 NIST
Cp,liquid 86.90 J/mol×K 285.00 NIST
η [0.0002359; 0.0008047] Pa×s [161.05; 283.52] Show Hide
η 0.0008047 Pa×s 161.05 Joback Calculated Property
η 0.0005846 Pa×s 181.46 Joback Calculated Property
η 0.0004531 Pa×s 201.87 Joback Calculated Property
η 0.0003680 Pa×s 222.28 Joback Calculated Property
η 0.0003095 Pa×s 242.70 Joback Calculated Property
η 0.0002674 Pa×s 263.11 Joback Calculated Property
η 0.0002359 Pa×s 283.52 Joback Calculated Property
ΔfusH [5.17; 5.17] kJ/mol [160.65; 160.70] Show Hide
ΔfusH 5.17 kJ/mol 160.65 NIST
ΔfusH 5.17 kJ/mol 160.70 NIST
ΔfusH 5.17 kJ/mol 160.70 NIST
ΔvapH [25.50; 26.90] kJ/mol [253.50; 290.50] Show Hide
ΔvapH 26.80 kJ/mol 253.50 NIST
ΔvapH 26.80 kJ/mol 261.50 NIST
ΔvapH 25.53 kJ/mol 283.66 NIST
ΔvapH 25.50 ± 0.30 kJ/mol 283.66 NIST
ΔvapH 25.54 kJ/mol 283.70 NIST
ΔvapH 25.61 kJ/mol 283.80 KDB
ΔvapH 26.90 kJ/mol 290.50 NIST
Pvap [174.71; 766.70] kPa [298.15; 348.15] Show Hide
Pvap 174.71 kPa 298.15 Vapor-L...
Pvap 766.70 kPa 348.15 Vapor-L...
ρl 899.00 kg/m3 273.00 KDB
ΔfusS 32.20 J/mol×K 160.65 NIST
γ 0.03 N/m 243.20 KDB
ΔvapS 89.99 J/mol×K 283.66 NIST

Correlations

Property Value Unit Temperature (K) Source
Pvap [1.33; 6516.51] kPa [207.53; 469.15] The Yaw... Show Hide
Equationln(Pvp) = A + B/(T + C)
Coefficient A1.45512e+01
Coefficient B-2.53439e+03
Coefficient C-2.98490e+01
Temperature range, min.207.53
Temperature range, max.469.15
Pvap 1.33 kPa 207.53 Calculated Property
Pvap 9.90 kPa 236.60 Calculated Property
Pvap 44.88 kPa 265.67 Calculated Property
Pvap 145.98 kPa 294.74 Calculated Property
Pvap 376.00 kPa 323.81 Calculated Property
Pvap 816.84 kPa 352.87 Calculated Property
Pvap 1561.17 kPa 381.94 Calculated Property
Pvap 2703.07 kPa 411.01 Calculated Property
Pvap 4329.88 kPa 440.08 Calculated Property
Pvap 6516.51 kPa 469.15 Calculated Property
Pvap [7.61e-03; 7296.19] kPa [160.71; 469.15] KDB Vap... Show Hide
Equationln(Pvp) = A + B/T + C*ln(T) + D*T^2
Coefficient A6.64077e+01
Coefficient B-5.01071e+03
Coefficient C-7.94255e+00
Coefficient D9.18560e-06
Temperature range, min.160.71
Temperature range, max.469.15
Pvap 7.61e-03 kPa 160.71 Calculated Property
Pvap 0.44 kPa 194.98 Calculated Property
Pvap 6.47 kPa 229.25 Calculated Property
Pvap 42.88 kPa 263.52 Calculated Property
Pvap 172.83 kPa 297.79 Calculated Property
Pvap 503.69 kPa 332.07 Calculated Property
Pvap 1180.08 kPa 366.34 Calculated Property
Pvap 2379.35 kPa 400.61 Calculated Property
Pvap 4321.33 kPa 434.88 Calculated Property
Pvap 7296.19 kPa 469.15 Calculated Property

Similar Compounds

Oxiranyl radical. CH2CH2OH. Ethanol-d1. Ethanol-1,1-d2. Ethanol. C2H3D3O. [2H6]ethanol. Ethanol-d5. Ethane, methoxy-. Ethyl, 1-methoxy-. Pluronic f-68. 1,2-Ethanediol. Ethoxyacetylene. Ethyl ether. Ethyl-nitrite-.

Find more compounds similar to Ethylene oxide.

Mixtures

Sources

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Outlier This icon means that the value is more than 2 standard deviations away from the property mean.

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