- InChI
- InChI=1S/C5H12N2/c1-5-4-6-2-3-7-5/h5-7H,2-4H2,1H3
- InChI Key
- JOMNTHCQHJPVAZ-UHFFFAOYSA-N
- Formula
- C5H12N2
- SMILES
- CC1CNCCN1
- Molecular Weight1
- 100.16
- CAS
- 109-07-9
- Other Names
-
- 2-Methylpiperazine
- 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).
- ΔfusH° : Enthalpy of fusion at standard conditions (kJ/mol).
- ΔvapH° : Enthalpy of vaporization at standard conditions (kJ/mol).
- 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).
- Tboil : Normal Boiling Point Temperature (K).
- Tboilr : Boiling point at reduced pressure (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 |
|---|---|---|---|
| ΔfG° | 191.09 | kJ/mol | Joback Calculated Property |
| ΔfH°gas | -16.59 | kJ/mol | Joback Calculated Property |
| ΔfusH° | 19.72 | kJ/mol | Joback Calculated Property |
| ΔvapH° | 40.67 | kJ/mol | Joback Calculated Property |
| log10WS | 0.74 | Aq. Sol... | |
| logPoct/wat | -0.432 | Crippen Calculated Property | |
| McVol | 90.410 | ml/mol | McGowan Calculated Property |
| Pc | 4802.50 | kPa | Joback Calculated Property |
| Tboil | 430.45 | K | Joback Calculated Property |
| Tc | 655.53 | K | Joback Calculated Property |
| Tfus | 363.55 | K | Joback Calculated Property |
| Vc | 0.323 | m3/kmol | Joback Calculated Property |
Temperature Dependent Properties
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Cp,gas | [174.54; 251.33] | J/mol×K | [430.45; 655.53] | 
|
| Cp,gas | 174.54 | J/mol×K | 430.45 | Joback Calculated Property |
| Cp,gas | 188.89 | J/mol×K | 467.96 | Joback Calculated Property |
| Cp,gas | 202.62 | J/mol×K | 505.48 | Joback Calculated Property |
| Cp,gas | 215.73 | J/mol×K | 542.99 | Joback Calculated Property |
| Cp,gas | 228.22 | J/mol×K | 580.50 | Joback Calculated Property |
| Cp,gas | 240.09 | J/mol×K | 618.02 | Joback Calculated Property |
| Cp,gas | 251.33 | J/mol×K | 655.53 | Joback Calculated Property |
Pressure Dependent Properties
| Property | Value | Unit | Pressure (kPa) | Source |
|---|---|---|---|---|
| Tboilr | 428.20 | K | 102.00 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [1.33; 202.63] | kPa | [321.91; 453.76] |
The Yaw...
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.53054e+01 | |||
| Coefficient B | -3.93903e+03 | |||
| Coefficient C | -5.96200e+01 | |||
| Temperature range, min. | 321.91 | |||
| Temperature range, max. | 453.76 | |||
| Pvap | 1.33 | kPa | 321.91 | Calculated Property |
| Pvap | 2.95 | kPa | 336.56 | Calculated Property |
| Pvap | 6.03 | kPa | 351.21 | Calculated Property |
| Pvap | 11.51 | kPa | 365.86 | Calculated Property |
| Pvap | 20.70 | kPa | 380.51 | Calculated Property |
| Pvap | 35.37 | kPa | 395.16 | Calculated Property |
| Pvap | 57.81 | kPa | 409.81 | Calculated Property |
| Pvap | 90.81 | kPa | 424.46 | Calculated Property |
| Pvap | 137.77 | kPa | 439.11 | Calculated Property |
| Pvap | 202.63 | kPa | 453.76 | Calculated Property |
Similar Compounds
Find more compounds similar to Piperazine, 2-methyl-.
Sources
- Crippen Method
- Joback Method
- Aqueous Solubility Prediction Method
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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