- InChI
- InChI=1S/C3H8N2O/c1-5(2)3(4)6/h1-2H3,(H2,4,6)
- InChI Key
- YBBLOADPFWKNGS-UHFFFAOYSA-N
- Formula
- C3H8N2O
- SMILES
- CN(C)C(N)=O
- Molecular Weight1
- 88.11
- CAS
- 598-94-7
- Other Names
-
- (CH3)2NCONH2
- 1,1-dimethylurea
- Asym-Dimethylurea
- N,N-dimethylcarbamide
- N,N-dimethylurea
- Urea, 1,1-dimethyl-
- ΔcH°solid : Standard solid enthalpy of combustion (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- ΔfG° : Standard Gibbs free energy of formation (kJ/mol).
- ΔfH°gas : Enthalpy of formation at standard conditions (kJ/mol).
- ΔfH°solid : Solid phase enthalpy of formation at standard conditions (kJ/mol).
- ΔfusH° : Enthalpy of fusion at standard conditions (kJ/mol).
- ΔfusH : Enthalpy of fusion at a given temperature (kJ/mol).
- ΔsubH° : Enthalpy of sublimation at standard conditions (kJ/mol).
- ΔsubH : Enthalpy of sublimation at a given temperature (kJ/mol).
- ΔvapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
- IE : Ionization energy (eV).
- log10WS : Log10 of Water solubility in mol/l.
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- Pc : Critical Pressure (kPa).
- Psub : Sublimation pressure (kPa).
- ΔfusS : Entropy of fusion at a given temperature (J/mol×K).
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Vc : Critical Volume (m3/kmol).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ΔcH°solid | -2004.80 ± 0.53 | kJ/mol | NIST |
| ΔfG° | 22.69 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -220.00 ± 1.10 | kJ/mol | NIST |
| ΔfH°solid | -319.06 ± 0.68 | kJ/mol | NIST |
| ΔfusH° | 13.34 | kJ/mol | Joback Calculated Property |
| ΔsubH° | 93.50 ± 0.30 | kJ/mol | NIST |
| ΔvapH° | 41.70 | kJ/mol | Joback Calculated Property |
| IE | [8.96; 9.10] | eV |
|
| IE | 9.10 ± 0.05 | eV | NIST |
| IE | 8.96 | eV | NIST |
| log10WS | 0.16 | Crippen Calculated Property | |
| logPoct/wat | -0.373 | Crippen Calculated Property | |
| McVol | 74.660 | ml/mol | McGowan Calculated Property |
| Pc | 5190.64 | kPa | Joback Calculated Property |
| Tboil | 406.88 | K | Joback Calculated Property |
| Tc | 601.80 | K | Joback Calculated Property |
| Tfus | [454.00; 455.20] | K |
|
| Tfus | 454.00 ± 0.50 | K | NIST |
| Tfus | 455.20 ± 0.10 | K | NIST |
| Vc | 0.257 | m3/kmol | Joback Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [143.54; 185.82] | J/mol×K | [406.88; 601.80] |
|
| Cp,gas | 143.54 | J/mol×K | 406.88 | Joback Calculated Property |
| Cp,gas | 151.56 | J/mol×K | 439.37 | Joback Calculated Property |
| Cp,gas | 159.17 | J/mol×K | 471.85 | Joback Calculated Property |
| Cp,gas | 166.39 | J/mol×K | 504.34 | Joback Calculated Property |
| Cp,gas | 173.23 | J/mol×K | 536.83 | Joback Calculated Property |
| Cp,gas | 179.70 | J/mol×K | 569.31 | Joback Calculated Property |
| Cp,gas | 185.82 | J/mol×K | 601.80 | Joback Calculated Property |
| ΔfusH | [29.11; 29.61] | kJ/mol | [454.00; 454.00] |
|
| ΔfusH | 29.61 | kJ/mol | 454.00 | NIST |
| ΔfusH | 29.11 | kJ/mol | 454.00 | NIST |
| ΔsubH | [92.50; 99.10] | kJ/mol | [347.50; 353.00] |
|
| ΔsubH | 94.70 ± 1.40 | kJ/mol | 347.50 | NIST |
| ΔsubH | 94.70 ± 1.40 | kJ/mol | 347.50 | NIST |
| ΔsubH | 92.50 ± 1.30 | kJ/mol | 347.50 | NIST |
| ΔsubH | 93.30 ± 0.50 | kJ/mol | 350.00 | NIST |
| ΔsubH | 99.10 ± 0.90 | kJ/mol | 353.00 | NIST |
| Psub | [3.14e-03; 0.20] | kPa | [346.30; 398.30] |
|
| Psub | 3.14e-03 | kPa | 346.30 | Measure... |
| Psub | 7.53e-03 | kPa | 356.10 | Measure... |
| Psub | 0.01 | kPa | 362.20 | Measure... |
| Psub | 0.02 | kPa | 365.20 | Measure... |
| Psub | 0.02 | kPa | 368.10 | Measure... |
| Psub | 0.03 | kPa | 371.20 | Measure... |
| Psub | 0.03 | kPa | 374.20 | Measure... |
| Psub | 0.04 | kPa | 377.20 | Measure... |
| Psub | 0.05 | kPa | 380.20 | Measure... |
| Psub | 0.07 | kPa | 383.30 | Measure... |
| Psub | 0.09 | kPa | 386.30 | Measure... |
| Psub | 0.11 | kPa | 389.30 | Measure... |
| Psub | 0.13 | kPa | 392.20 | Measure... |
| Psub | 0.16 | kPa | 395.20 | Measure... |
| Psub | 0.20 | kPa | 398.30 | Measure... |
| ΔfusS | 65.20 | J/mol×K | 454.00 | NIST |
Similar Compounds
Find more compounds similar to Urea, N,N-dimethyl-.
Mixtures
Sources
- Crippen Method
- Crippen Method
- Apparent molar volumes and apparent molar heat capacities of aqueous urea, 1,1-dimethylurea, and N,N'-dimethylurea at temperatures from (278.15 to 348.15) K and at the pressure 0.35 MPa
- Hydration of urea and its derivatives - Volumetric and compressibility studies
- Measurement and Prediction of Thermochemical Properties: Improved Increments for the Estimation of Enthalpies of Sublimation and Standard Enthalpies of Formation of Alkyl Derivatives of Urea
- Joback Method
- McGowan Method
- NIST Webbook
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