- InChI
- InChI=1S/C2H8N2/c1-3-4-2/h3-4H,1-2H3
- InChI Key
- DIIIISSCIXVANO-UHFFFAOYSA-N
- Formula
- C2H8N2
- SMILES
- CNNC
- Molecular Weight1
- 60.10
- CAS
- 540-73-8
- Other Names
-
- (CH3NH)2
- 1,2-Dimethylhydrazin
- 1,2-Dimethylhydrazine
- DMH
- Dimethylhydrazine, symmetrical
- Hydrazomethane
- N,N'-Dimethylhydrazine
- Rcra waste number U099
- SDMH
- Symetryczna dwumetylohydrazyna
- UN 2382
- s-Dimethylhydrazine
- sym-Dimethylhydrazine
- ΔcH°liquid : Standard liquid enthalpy of combustion (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- Cp,liquid : Liquid phase heat capacity (J/mol×K).
- ΔfG° : Standard Gibbs free energy of formation (kJ/mol).
- ΔfH°gas : 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).
- ΔvapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
- ΔvapH : Enthalpy of vaporization at a given temperature (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).
- Pvap : Vapor pressure (kPa).
- Inp : Non-polar retention indices.
- ΔfusS : Entropy of fusion at a given temperature (J/mol×K).
- S°liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Ttriple : Triple Point Temperature (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°liquid | -1983.00 ± 4.20 | kJ/mol | NIST |
| ΔfG° | 144.74 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | 22.33 | kJ/mol | Joback Calculated Property |
| ΔfusH° | 11.13 | kJ/mol | Joback Calculated Property |
| ΔvapH° | [39.33; 39.50] | kJ/mol |
|
| ΔvapH° | 39.50 | kJ/mol | NIST |
| ΔvapH° | 39.33 ± 0.06 | kJ/mol | NIST |
| IE | [7.80; 9.62] | eV |
|
| IE | 9.62 | eV | NIST |
| IE | 8.22 | eV | NIST |
| IE | 7.80 ± 0.10 | eV | NIST |
| IE | 9.02 | eV | NIST |
| IE | 9.02 | eV | NIST |
| IE | 9.00 | eV | NIST |
| IE | 9.00 | eV | NIST |
| log10WS | -0.03 | Crippen Calculated Property | |
| logPoct/wat | -0.660 | Crippen Calculated Property | |
| McVol | 59.000 | ml/mol | McGowan Calculated Property |
| Pc | 5220.69 | kPa | Joback Calculated Property |
| Inp | [594.00; 645.00] |
|
|
| Inp | 645.00 | NIST | |
| Inp | 594.00 | NIST | |
| S°liquid | 199.15 | J/mol×K | NIST |
| Tboil | 360.20 | K | NIST |
| Tc | 523.05 | K | Joback Calculated Property |
| Tfus | 217.62 | K | Joback Calculated Property |
| Ttriple | 264.28 ± 0.04 | K | NIST |
| Vc | 0.217 | m3/kmol | Joback Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [97.91; 134.71] | J/mol×K | [345.50; 523.05] |
|
| Cp,gas | 97.91 | J/mol×K | 345.50 | Joback Calculated Property |
| Cp,gas | 104.66 | J/mol×K | 375.09 | Joback Calculated Property |
| Cp,gas | 111.16 | J/mol×K | 404.68 | Joback Calculated Property |
| Cp,gas | 117.40 | J/mol×K | 434.28 | Joback Calculated Property |
| Cp,gas | 123.41 | J/mol×K | 463.87 | Joback Calculated Property |
| Cp,gas | 129.18 | J/mol×K | 493.46 | Joback Calculated Property |
| Cp,gas | 134.71 | J/mol×K | 523.05 | Joback Calculated Property |
| Cp,liquid | 171.04 | J/mol×K | 298.15 | NIST |
| ΔfusH | [13.64; 13.64] | kJ/mol | [264.28; 264.30] |
|
| ΔfusH | 13.64 | kJ/mol | 264.28 | NIST |
| ΔfusH | 13.64 | kJ/mol | 264.30 | NIST |
| ΔfusH | 13.64 | kJ/mol | 264.30 | NIST |
| ΔvapH | [35.16; 41.00] | kJ/mol | [285.50; 360.20] |
|
| ΔvapH | 41.00 | kJ/mol | 285.50 | NIST |
| ΔvapH | 35.16 | kJ/mol | 360.20 | NIST |
| ΔfusS | 51.60 | J/mol×K | 264.28 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.25; 202.66] | kPa | [264.25; 389.22] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.08580e+01 | |||
| Coefficient B | -1.44879e+03 | |||
| Coefficient C | -1.28010e+02 | |||
| Temperature range, min. | 264.25 | |||
| Temperature range, max. | 389.22 | |||
| Pvap | 1.25 | kPa | 264.25 | Calculated Property |
| Pvap | 3.34 | kPa | 278.14 | Calculated Property |
| Pvap | 7.57 | kPa | 292.02 | Calculated Property |
| Pvap | 15.09 | kPa | 305.91 | Calculated Property |
| Pvap | 27.21 | kPa | 319.79 | Calculated Property |
| Pvap | 45.32 | kPa | 333.68 | Calculated Property |
| Pvap | 70.75 | kPa | 347.56 | Calculated Property |
| Pvap | 104.76 | kPa | 361.45 | Calculated Property |
| Pvap | 148.43 | kPa | 375.33 | Calculated Property |
| Pvap | 202.66 | kPa | 389.22 | Calculated Property |
Similar Compounds
Find more compounds similar to Hydrazine, 1,2-dimethyl-.
Sources
- Crippen Method
- Crippen Method
- Joback Method
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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