- 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 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).
- 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).
- Vc : Critical Volume (m3/kmol).
- 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 |
| ΔvapH° | 36.88 | 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 |
| log10WS | 0.32 | Crippen Calculated Property | |
| 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 |
| Vc | 0.093 | m3/kmol | Joback Calculated Property |
| Zra | 0.26 | KDB |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [52.79; 68.66] | J/mol×K | [344.46; 548.03] |
|
|
T(K) Ideal gas heat capacity (J/mol×K) 55 60 65 70 400 500 | ||||
| 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 Yaw...
|
| 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 | |||
|
T(K) Vapor pressure (kPa) 0 2000 4000 6000 8000 10000 12000 14000 16000 300 400 500 600 | ||||
| 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
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that the value is more than 2 standard deviations away from the
property mean.