Chemical Properties of Urea (CAS 57-13-6)

Urea

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InChI
InChI=1S/CH4N2O/c2-1(3)4/h(H4,2,3,4)
InChI Key
XSQUKJJJFZCRTK-UHFFFAOYSA-N
Formula
CH4N2O
SMILES
NC(N)=O
Molecular Weight1
60.06
CAS
57-13-6
Other Names
  • (NH2)2CO
  • Alphadrate
  • Aquacare
  • Aquadrate
  • B-I-K
  • Basodexan
  • Benural 70
  • Bubber shet
  • Calmurid
  • Carbaderm
  • Carbamide
  • Carbamimidic acid
  • Carbonyl Diamine
  • Carbonyldiamide
  • Elaqua xx
  • Harnstoff
  • Hyanit
  • Isourea
  • Keratinamin
  • Mocovina
  • NCI-C02119
  • NSC 34375
  • Nutraplus
  • Onychomal
  • Pastaron
  • Prespersion, 75 urea
  • Pseudourea
  • Supercel 3000
  • UR
  • Ultra Mide
  • Urea-13C
  • Ureaphil
  • Ureophil
  • Urepearl
  • Urevert
  • Uroderm
  • Varioform II

Physical Properties

Property Value Unit Source
PAff [868.40; 873.50] kJ/mol Show Hide
PAff 868.40 ± 2.50 kJ/mol NIST
PAff 873.50 ± 5.00 kJ/mol NIST
PAff 873.50 ± 5.00 kJ/mol NIST
BasG [838.70; 846.10] kJ/mol Show Hide
BasG 838.70 ± 3.00 kJ/mol NIST
BasG 846.10 ± 5.00 kJ/mol NIST
BasG 841.60 ± 5.00 kJ/mol NIST
SProt [-1.90; 9.40] J/mol×K Show Hide
SProt 9.40 J/mol×K NIST
SProt -1.90 J/mol×K NIST
Δf -38.48 kJ/mol Joback Calculated Property
Δfgas -235.50 ± 1.20 kJ/mol NIST
Δfsolid [-333.39; -320.20] kJ/mol Show Hide
Δfsolid -333.11 ± 0.69 kJ/mol NIST
Δfsolid -320.20 ± 2.00 kJ/mol NIST
Δfsolid -333.39 ± 0.17 kJ/mol NIST
Δfsolid -333.30 ± 0.20 kJ/mol NIST
Δfsolid -323.60 kJ/mol NIST
Δfus 10.34 kJ/mol Joback Calculated Property
Δsub [87.65; 98.60] kJ/mol Show Hide
Δsub 95.50 ± 0.30 kJ/mol NIST
Δsub 98.60 kJ/mol NIST
Δsub 87.65 ± 0.88 kJ/mol NIST
Δvap 45.85 kJ/mol Joback Calculated Property
IE [9.70; 10.33] eV Show Hide
IE 9.70 eV NIST
IE 10.27 ± 0.05 eV NIST
IE 9.80 eV NIST
IE 10.28 eV NIST
IE 10.33 eV NIST
IE 10.15 eV NIST
log10WS [0.96; 0.96]   Show Hide
log10WS 0.96 Aq. Sol...
log10WS 0.96 Estimat...
logPoct/wat -0.976 Crippen Calculated Property
McVol 46.480 ml/mol McGowan Calculated Property
Pc 7735.33 kPa Joback Calculated Property
solid,1 bar [104.26; 172.00] J/mol×K Show Hide
solid,1 bar 104.26 J/mol×K NIST
solid,1 bar 104.93 J/mol×K NIST
solid,1 bar 105.40 J/mol×K NIST
solid,1 bar 172.00 J/mol×K NIST
Tboil 421.21 K Joback Calculated Property
Tc 638.13 K Joback Calculated Property
Tfus [405.15; 410.00] K Show Hide
Tfus 407.00 K Aq. Sol...
Tfus 406.50 ± 0.50 K NIST
Tfus 406.00 ± 3.00 K NIST
Tfus 406.20 ± 0.10 K NIST
Tfus 405.40 ± 0.80 K NIST
Tfus 405.80 ± 0.50 K NIST
Tfus 405.15 ± 1.50 K NIST
Tfus 406.15 ± 1.50 K NIST
Tfus Outlier 410.00 ± 1.50 K NIST
Ttriple [405.80; 408.00] K Show Hide
Ttriple 407.90 ± 0.20 K NIST
Ttriple 408.00 ± 0.00 K NIST
Ttriple 405.80 ± 0.10 K NIST
Ttriple 405.80 ± 0.20 K NIST
Vc 0.155 m3/kmol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas [87.80; 109.86] J/mol×K [421.21; 638.13] Show Hide
Cp,gas 87.80 J/mol×K 421.21 Joback Calculated Property
Cp,gas 91.98 J/mol×K 457.36 Joback Calculated Property
Cp,gas 95.96 J/mol×K 493.52 Joback Calculated Property
Cp,gas 99.73 J/mol×K 529.67 Joback Calculated Property
Cp,gas 103.30 J/mol×K 565.82 Joback Calculated Property
Cp,gas 106.68 J/mol×K 601.98 Joback Calculated Property
Cp,gas 109.86 J/mol×K 638.13 Joback Calculated Property
Cp,solid [68.60; 115.50] J/mol×K [293.00; 304.70] Show Hide
Cp,solid 68.60 J/mol×K 293.00 NIST
Cp,solid 93.64 J/mol×K 298.00 NIST
Cp,solid 115.50 J/mol×K 298.00 NIST
Cp,solid 93.08 J/mol×K 298.15 NIST
Cp,solid 90.00 J/mol×K 298.15 NIST
Cp,solid 93.14 J/mol×K 298.15 NIST
Cp,solid 92.79 J/mol×K 298.15 NIST
Cp,solid 94.00 J/mol×K 304.70 NIST
ΔfusH [12.93; 15.03] kJ/mol [405.20; 408.10] Show Hide
ΔfusH 13.60 kJ/mol 405.20 NIST
ΔfusH 13.90 kJ/mol 405.80 NIST
ΔfusH 13.61 kJ/mol 405.80 NIST
ΔfusH 13.90 kJ/mol 405.80 NIST
ΔfusH 14.50 kJ/mol 406.00 NIST
ΔfusH 14.79 kJ/mol 406.50 NIST
ΔfusH 14.60 kJ/mol 406.70 NIST
ΔfusH 14.60 kJ/mol 407.20 NIST
ΔfusH 15.03 kJ/mol 407.90 NIST
ΔfusH 12.93 kJ/mol 408.10 NIST
ΔsubH [87.70; 97.60] kJ/mol [350.00; 381.00] Show Hide
ΔsubH 96.90 kJ/mol 350.00 NIST
ΔsubH 94.60 ± 0.50 kJ/mol 350.00 NIST
ΔsubH 97.60 ± 1.00 kJ/mol 354.00 NIST
ΔsubH 87.70 kJ/mol 356.50 NIST
ΔsubH 87.90 ± 2.10 kJ/mol 356.50 NIST
ΔsubH 88.20 kJ/mol 357.00 NIST
ΔsubH 95.40 kJ/mol 361.00 NIST
ΔsubH 94.60 ± 2.20 kJ/mol 366.00 NIST
ΔsubH 95.10 ± 2.20 kJ/mol 366.00 NIST
ΔsubH 90.90 kJ/mol 381.00 NIST
Psub [6.40e-04; 0.02] kPa [358.30; 402.00] Show Hide
Psub 6.40e-04 kPa 358.30 Measure...
Psub 1.00e-03 kPa 363.40 Measure...
Psub 1.51e-03 kPa 368.40 Measure...
Psub 1.89e-03 kPa 371.20 Measure...
Psub 2.46e-03 kPa 374.30 Measure...
Psub 2.96e-03 kPa 376.50 Measure...
Psub 3.80e-03 kPa 379.50 Measure...
Psub 6.27e-03 kPa 386.30 Measure...
Psub 0.01 kPa 393.20 Measure...
Psub 0.02 kPa 399.00 Measure...
Psub 0.02 kPa 402.00 Measure...
ΔfusS [33.54; 36.40] J/mol×K [405.80; 406.50] Show Hide
ΔfusS 34.25 J/mol×K 405.80 NIST
ΔfusS 33.54 J/mol×K 405.80 NIST
ΔfusS 35.70 J/mol×K 406.00 NIST
ΔfusS 36.40 J/mol×K 406.50 NIST

Similar Compounds

Thiourea. hydroxyurea. Formamide. Hydrazinecarboxamide. Imidodicarbonic diamide. 1,1'-Azodiformamide. Guanidine. nitrourea. Urea, methyl-. Urea, methoxy-. 1,2-Hydrazinedicarboxamide. Cyanamide. Urea, N,N-dimethyl-. Acetamide. Propiolamide.

Find more compounds similar to Urea.

Mixtures

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