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
Sources

Physical Properties

Property Value Unit Source
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 ± 3.00 kJ/mol NIST
BasG 846.10 ± 5.00 kJ/mol NIST
BasG 841.60 ± 5.00 kJ/mol NIST
Δcsolid [-645.00; -631.37] kJ/mol Show Hide
Δcsolid -632.06 ± 0.67 kJ/mol NIST
Δcsolid Outlier -645.00 ± 2.00 kJ/mol NIST
Δcsolid -631.78 ± 0.16 kJ/mol NIST
Δcsolid -631.37 ± 0.08 kJ/mol NIST
Δcsolid -633.90 ± 1.70 kJ/mol NIST
Δcsolid -631.80 ± 0.20 kJ/mol NIST
Δcsolid -637.43 kJ/mol NIST
Δcsolid -635.10 kJ/mol NIST
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 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
logPoct/wat -0.98 Crippen 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 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 0.16 m3/kg-mol Joback Calculated Property

Temperature Dependent Properties

Property Value Unit Temperature (K) Source
Cp,gas 87.80 J/mol×K 421.21 Joback Calculated Property
Cp,solid [68.60; 115.50] J/mol×K [293.00; 304.70] Show Hide
Plot of Solid phase heat capacity.
Cp,solid 68.60 J/mol×K 293.0 NIST
Cp,solid 93.64 J/mol×K 298.0 NIST
Cp,solid 115.50 J/mol×K 298.0 NIST
Cp,solid 92.79 J/mol×K 298.15 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 94.00 J/mol×K 304.7 NIST
ΔfusH [12.93; 15.03] kJ/mol [405.20; 408.10] Show Hide
Plot of Enthalpy of fusion at a given temperature.
ΔfusH 13.60 kJ/mol 405.2 NIST
ΔfusH 13.90 kJ/mol 405.8 NIST
ΔfusH 13.61 kJ/mol 405.8 NIST
ΔfusH 13.90 kJ/mol 405.8 NIST
ΔfusH 14.50 kJ/mol 406.0 NIST
ΔfusH 14.79 kJ/mol 406.5 NIST
ΔfusH 14.60 kJ/mol 406.7 NIST
ΔfusH 14.60 kJ/mol 407.2 NIST
ΔfusH 15.03 kJ/mol 407.9 NIST
ΔfusH 12.93 kJ/mol 408.1 NIST
ΔsubH [87.70; 97.60] kJ/mol [350.00; 381.00] Show Hide
Plot of Enthalpy of sublimation at a given temperature.
ΔsubH 94.60 ± 0.50 kJ/mol 350.0 NIST
ΔsubH 96.90 kJ/mol 350.0 NIST
ΔsubH 97.60 ± 1.00 kJ/mol 354.0 NIST
ΔsubH 87.70 kJ/mol 356.5 NIST
ΔsubH 87.90 ± 2.10 kJ/mol 356.5 NIST
ΔsubH 88.20 kJ/mol 357.0 NIST
ΔsubH 95.40 kJ/mol 361.0 NIST
ΔsubH 94.60 ± 2.20 kJ/mol 366.0 NIST
ΔsubH 95.10 ± 2.20 kJ/mol 366.0 NIST
ΔsubH 90.90 kJ/mol 381.0 NIST
ΔfusS [33.54; 36.40] J/mol×K [405.80; 406.50] Show Hide
ΔfusS 34.25 J/mol×K 405.8 NIST
ΔfusS 33.54 J/mol×K 405.8 NIST
ΔfusS 35.70 J/mol×K 406.0 NIST
ΔfusS 36.40 J/mol×K 406.5 NIST

Molecular Descriptors

Joback and Reid Groups
>C=O (nonring) 1
-NH2 2

Similar Compounds

Urea hydrochloride. Formamide. Urea, methyl-. Semicarbazide hydrochloride. Hydrazinecarboxamide-. Urea, N,N'-dimethyl-. dimethylurea. Formamide, N-methyl-. Carbohydrazide. Urea, N,N-dimethyl-. Formic acid hydrazide. HCOONH2. Acetamide. Urea, ethyl-. Imidodicarbonic diamide.

Find more compounds similar to Urea.

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