Chemical Properties of Triethyl phosphate (CAS 78-40-0)

Triethyl phosphate

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InChI
InChI=1S/C6H15O4P/c1-4-8-11(7,9-5-2)10-6-3/h4-6H2,1-3H3
InChI Key
DQWPFSLDHJDLRL-UHFFFAOYSA-N
Formula
C6H15O4P
SMILES
CCOP(=O)(OCC)OCC
Molecular Weight1
182.15
CAS
78-40-0
Other Names
  • (C2H5O)3PO
  • Ethyl phosphate
  • Ethyl phosphate ((EtO)3PO)
  • Ethyl phosphate, tri-
  • NSC 2677
  • Phosphoric acid, triethyl ester
  • TEP
  • Triethoxyphosphine oxide
  • Triethylfosfat
  • Tris(ethyl) phosphate
  • o-Phosphoric acid triethyl ester
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Physical Properties

Property Value Unit Source
PAff 909.30 kJ/mol NIST
BasG 879.60 kJ/mol NIST
Δvap 55.70 kJ/mol NIST
IE [9.79; 12.80] eV Show
IE 10.00 eV NIST
IE 9.79 eV NIST
IE Outlier 12.80 ± 0.20 eV NIST
IE 10.06 ± 0.27 eV NIST
IE 10.69 eV NIST
IE 10.54 eV NIST
IE 10.40 eV NIST
log10WS [0.43; 0.43]   Show
log10WS 0.43 Aq. Sol...
log10WS 0.43 Estimat...
logPoct/wat 2.204 Crippen Calculated Property
McVol 139.340 ml/mol McGowan Calculated Property
Inp [1079.00; 1137.20]   Show
Inp 1081.00 NIST
Inp 1079.00 NIST
Inp 1108.00 NIST
Inp 1109.00 NIST
Inp 1090.00 NIST
Inp 1137.20 NIST
Inp 1088.00 NIST
Inp 1120.50 NIST
Inp 1121.30 NIST
Inp 1121.50 NIST
Inp 1090.70 NIST
Inp 1137.20 NIST
Inp 1091.00 NIST
Inp 1091.00 NIST
Inp 1127.00 NIST
Inp 1087.00 NIST
Inp 1090.50 NIST
Inp 1137.20 NIST
Inp 1096.00 NIST
Inp 1091.00 NIST
Inp 1109.00 NIST
Inp 1109.00 NIST
I [1656.00; 1672.10]   Show
I 1656.00 NIST
I 1659.00 NIST
I 1656.10 NIST
I 1672.10 NIST
Tboil [489.00; 489.04] K Show
Tboil 489.04 K Estimat...
Tboil 489.00 ± 2.00 K NIST
Tfus 216.95 K Aq. Sol...

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
ΔvapH [46.30; 55.73] kJ/mol [298.15; 398.00] Show
ΔvapH 55.73 kJ/mol 298.15 Measure...
ΔvapH 46.30 kJ/mol 398.00 NIST
Pvap [1.20e-03; 3.82e-03] kPa [271.25; 283.15] Show
T(K)
Vapor pressure (kPa)
1.00e-3
1.50e-3
2.00e-3
2.50e-3
3.00e-3
3.50e-3
4.00e-3
275
280
Pvap 1.20e-03 kPa 271.25 Vapor P...
Pvap 1.24e-03 kPa 272.25 Vapor P...
Pvap 1.69e-03 kPa 275.25 Vapor P...
Pvap 2.22e-03 kPa 278.05 Vapor P...
Pvap 3.82e-03 kPa 283.15 Vapor P...
ρl [1043.20; 1071.10] kg/m3 [293.15; 323.15] Show
T(K)
Liquid Density (kg/m3)
1045
1050
1055
1060
1065
1070
300
310
320
ρl 1071.10 kg/m3 293.15 Towards...
ρl 1067.90 kg/m3 298.15 Towards...
ρl 1063.30 kg/m3 303.15 Towards...
ρl 1058.90 kg/m3 308.15 Towards...
ρl 1053.50 kg/m3 313.15 Towards...
ρl 1048.00 kg/m3 318.15 Towards...
ρl 1043.20 kg/m3 323.15 Towards...

Correlations

Property Value Unit Temperature (K) Source
Pvap [1.33; 202.65] kPa [361.00; 517.97] The Yaw... Show
Equationln(Pvp) = A + B/(T + C)
Coefficient A1.61069e+01
Coefficient B-5.33572e+03
Coefficient C-2.37130e+01
Temperature range, min.361.00
Temperature range, max.517.97
T(K)
Vapor pressure (kPa)
0
50
100
150
200
400
450
500
Pvap 1.33 kPa 361.00 Calculated Property
Pvap 2.90 kPa 378.44 Calculated Property
Pvap 5.87 kPa 395.88 Calculated Property
Pvap 11.15 kPa 413.32 Calculated Property
Pvap 20.06 kPa 430.76 Calculated Property
Pvap 34.37 kPa 448.21 Calculated Property
Pvap 56.45 kPa 465.65 Calculated Property
Pvap 89.27 kPa 483.09 Calculated Property
Pvap 136.54 kPa 500.53 Calculated Property
Pvap 202.65 kPa 517.97 Calculated Property

Similar Compounds

Triethyl phosphite. Tri(2-chloroethyl) phosphate. Calcium diethyl phosphate. Phosphorochloridic acid, diethyl ester. Tetraethyl pyrophosphate. Diethyl phosphite. Tripropyl phosphate. Triisopropylphosphate. O,O,O-Triethyl thiophosphate. Diethyl cyanophosphonate. Phosphorochloridous acid, diethyl ester. Mono-di-iso-propyl acid o-phosphate. 1,3-Propanediol,2,2-dimethyl-, bis(diethylphosphate). Demeton-O-oa. Diethyl methanephosphonate.

Find more compounds similar to Triethyl phosphate.

Mixtures

Sources

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