- InChI
- InChI=1S/H4N2/c1-2/h1-2H2
- InChI Key
- OAKJQQAXSVQMHS-UHFFFAOYSA-N
- Formula
- H4N2
- SMILES
- NN
- Molecular Weight1
- 32.05
- CAS
- 302-01-2
- Other Names
-
- DIAMIDE
- DIAMIDE HYDRATE
- Diamine
- Hydrazine base
- Hydrazine, anhydrous
- Hydrazyna
- Levoxine
- N2H4
- Nitrogen hydride, (N2H4)
- Oxytreat 35
- Rcra waste number U133
- ω : Acentric Factor.
- PAff : Proton affinity (kJ/mol).
- BasG : Gas basicity (kJ/mol).
- ΔcH°gas : Standard gas enthalpy of combustion (kJ/mol).
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- μ : Dipole Moment (debye).
- 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).
- ΔvapH : Enthalpy of vaporization at a given temperature (kJ/mol).
- IE : Ionization energy (eV).
- logPoct/wat : Octanol/Water partition coefficient.
- McVol : McGowan's characteristic volume (ml/mol).
- NFPA Fire : NFPA Fire Rating.
- NFPA Health : NFPA Health Rating.
- NFPA Safety : NFPA Safety Rating.
- Pc : Critical Pressure (kPa).
- Pvap : Vapor pressure (kPa).
- ρl : Liquid Density (kg/m3).
- Tboil : Normal Boiling Point Temperature (K).
- Tc : Critical Temperature (K).
- Tfus : Normal melting (fusion) point (K).
- Ttriple : Triple Point Temperature (K).
- Zra : Rackett Parameter.
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| ω | 0.3160 | KDB | |
| PAff | 853.20 | kJ/mol | NIST |
| BasG | 822.40 | kJ/mol | NIST |
| ΔcH°gas | -622.08 | kJ/mol | NIST |
| μ | 3.00 | debye | KDB |
| ΔfG° | 158.60 | kJ/mol | KDB |
| ΔfH°gas | [50.42; 150.00] | kJ/mol |
|
| ΔfH°gas | 95.25 | kJ/mol | KDB |
| ΔfH°gas | 150.00 ± 8.00 | kJ/mol | NIST |
| ΔfH°gas | 50.42 | kJ/mol | NIST |
| ΔfusH° | 6.15 | kJ/mol | Joback Calculated Property |
| IE | [8.10; 10.68] | eV |
|
| IE | 8.10 ± 0.15 | eV | NIST |
| IE | 8.10 ± 0.15 | eV | NIST |
| IE | 8.93 ± 0.05 | eV | NIST |
| IE | 8.93 | eV | NIST |
| IE | 8.80 | eV | NIST |
| IE | 8.74 ± 0.06 | eV | NIST |
| IE | 8.36 ± 0.03 | eV | NIST |
| IE | 9.00 ± 0.10 | eV | NIST |
| IE | 9.56 ± 0.02 | eV | NIST |
| IE | 8.98 ± 0.05 | eV | NIST |
| IE | Outlier 10.68 | eV | NIST |
| IE | 9.90 | eV | NIST |
| IE | 9.91 | eV | NIST |
| IE | 10.07 | eV | NIST |
| logPoct/wat | -1.181 | Crippen Calculated Property | |
| McVol | 30.820 | ml/mol | McGowan Calculated Property |
| NFPA Fire | 3 | KDB | |
| NFPA Health | 3 | KDB | |
| NFPA Safety | 2 | KDB | |
| Pc | 14700.00 | kPa | KDB |
| Tboil | [386.40; 386.95] | K |
|
| Tboil | 386.70 | K | KDB |
| Tboil | 386.65 ± 0.50 | K | NIST |
| Tboil | 386.40 ± 1.00 | K | NIST |
| Tboil | 386.95 ± 0.50 | K | NIST |
| Tc | 653.00 | K | KDB |
| Tfus | [274.50; 275.15] | K |
|
| Tfus | 274.50 | K | KDB |
| Tfus | 275.00 ± 1.50 | K | NIST |
| Tfus | 274.65 ± 0.50 | K | NIST |
| Tfus | 275.15 ± 1.00 | K | NIST |
| Ttriple | [274.56; 274.69] | K |
|
| Ttriple | 274.56 ± 0.10 | K | NIST |
| Ttriple | 274.69 ± 0.05 | K | NIST |
| Zra | 0.26 | KDB |
Cheméo can also estimate Critical Volume, Enthalpy of vaporization at standard conditions, Log10 of Water solubility in mol/l for this compound, but they fall outside the models' validated range, so they are not shown here. Open the prediction tool to compute them on demand.
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [52.79; 68.66] | J/mol×K | [344.46; 548.03] |
|
| Cp,gas | 52.79 | J/mol×K | 344.46 | Joback Calculated Property |
| Cp,gas | 55.72 | J/mol×K | 378.39 | Joback Calculated Property |
| Cp,gas | 58.53 | J/mol×K | 412.32 | Joback Calculated Property |
| Cp,gas | 61.23 | J/mol×K | 446.25 | Joback Calculated Property |
| Cp,gas | 63.81 | J/mol×K | 480.18 | Joback Calculated Property |
| Cp,gas | 66.29 | J/mol×K | 514.11 | Joback Calculated Property |
| Cp,gas | 68.66 | J/mol×K | 548.03 | Joback Calculated Property |
| ΔvapH | 44.50 | kJ/mol | 320.50 | NIST |
| ρl | 1008.00 | kg/m3 | 293.00 | KDB |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [0.41; 14728.39] | kPa | [274.68; 653.15] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.60114e+01 | |||
| Coefficient B | -3.91113e+03 | |||
| Coefficient C | -4.33600e+01 | |||
| Temperature range, min. | 274.68 | |||
| Temperature range, max. | 653.15 | |||
| Pvap | 0.41 | kPa | 274.68 | Calculated Property |
| Pvap | 5.50 | kPa | 316.73 | Calculated Property |
| Pvap | 37.03 | kPa | 358.78 | Calculated Property |
| Pvap | 159.25 | kPa | 400.84 | Calculated Property |
| Pvap | 503.75 | kPa | 442.89 | Calculated Property |
| Pvap | 1279.63 | kPa | 484.94 | Calculated Property |
| Pvap | 2764.06 | kPa | 526.99 | Calculated Property |
| Pvap | 5278.37 | kPa | 569.05 | Calculated Property |
| Pvap | 9158.67 | kPa | 611.10 | Calculated Property |
| Pvap | 14728.39 | kPa | 653.15 | Calculated Property |
Similar Compounds
Find more compounds similar to Hydrazine.
Sources
- Crippen Method
- Crippen Method
- Joback Method
- KDB
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
Note: Cheméo is only indexing the data, follow the source links to retrieve the latest data. The source is also providing more information like the publication year, authors and more.
Take the time to validate and double check the source of the data.
Outlier This icon means
that the value is more than 2 standard deviations away from the
property mean.