- InChI
- InChI=1S/Br2/c1-2
- InChI Key
- GDTBXPJZTBHREO-UHFFFAOYSA-N
- Formula
- Br2
- SMILES
- BrBr
- Molecular Weight1
- 159.81
- CAS
- 7726-95-6
- Other Names
-
- Br2
- Brom
- Brome
- Bromo
- Broom
- Dibromine
- UN 1744
- Cp,gas : Ideal gas heat capacity (J/mol×K).
- η : Dynamic viscosity (Pa×s).
- EA : Electron affinity (eV).
- 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).
- Pvap : Vapor pressure (kPa).
- S°gas,1 bar : Molar entropy at standard conditions (1 bar) (J/mol×K).
- S°liquid : Liquid phase molar entropy at standard conditions (J/mol×K).
- Tfus : Normal melting (fusion) point (K).
- 1: Molecular weight from the IUPAC atomic weights tables.
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Physical Properties
| Property | Value | Unit | Source |
|---|---|---|---|
| EA | [1.47; 2.87] | eV |
|
| EA | 2.42 | eV | NIST |
| EA | 2.60 ± 0.20 | eV | NIST |
| EA | 2.62 ± 0.20 | eV | NIST |
| EA | 2.55 ± 0.10 | eV | NIST |
| EA | 2.51 ± 0.10 | eV | NIST |
| EA | 2.87 ± 0.14 | eV | NIST |
| EA | Outlier 1.47 ± 0.05 | eV | NIST |
| ΔfH°gas | 30.91 ± 0.11 | kJ/mol | NIST |
| ΔfusH° | 6.33 | kJ/mol | Joback Calculated Property |
| IE | [10.50; 10.92] | eV |
|
| IE | 10.52 ± 0.00 | eV | NIST |
| IE | 10.52 ± 0.00 | eV | NIST |
| IE | 10.52 ± 0.01 | eV | NIST |
| IE | 10.51 ± 0.02 | eV | NIST |
| IE | 10.50 ± 0.30 | eV | NIST |
| IE | 10.52 ± 0.01 | eV | NIST |
| IE | 10.55 | eV | NIST |
| IE | 10.52 | eV | NIST |
| IE | 10.80 ± 0.20 | eV | NIST |
| IE | 10.51 ± 0.01 | eV | NIST |
| IE | 10.70 ± 0.10 | eV | NIST |
| IE | 10.51 | eV | NIST |
| IE | 10.52 ± 0.01 | eV | NIST |
| IE | 10.56 ± 0.01 | eV | NIST |
| IE | 10.51 | eV | NIST |
| IE | 10.57 | eV | NIST |
| IE | Outlier 10.92 | eV | NIST |
| logPoct/wat | 1.691 | Crippen Calculated Property | |
| McVol | 45.860 | ml/mol | McGowan Calculated Property |
| S°gas,1 bar | 245.47 ± 0.01 | J/mol×K | NIST |
| S°liquid | 152.21 ± 0.30 | J/mol×K | NIST |
| Tfus | [254.15; 266.00] | K |
|
| Tfus | 266.00 ± 0.30 | K | NIST |
| Tfus | 254.15 ± 10.00 | K | NIST |
Cheméo can also estimate Normal Boiling Point Temperature, Critical Temperature, Critical Pressure, Critical Volume, Enthalpy of vaporization at standard conditions, Standard Gibbs free energy of formation, Acentric Factor, 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 | [34.86; 36.86] | J/mol×K | [331.72; 544.73] |
|
| Cp,gas | 34.86 | J/mol×K | 331.72 | Joback Calculated Property |
| Cp,gas | 35.50 | J/mol×K | 367.22 | Joback Calculated Property |
| Cp,gas | 35.99 | J/mol×K | 402.72 | Joback Calculated Property |
| Cp,gas | 36.36 | J/mol×K | 438.23 | Joback Calculated Property |
| Cp,gas | 36.62 | J/mol×K | 473.73 | Joback Calculated Property |
| Cp,gas | 36.78 | J/mol×K | 509.23 | Joback Calculated Property |
| Cp,gas | 36.86 | J/mol×K | 544.73 | Joback Calculated Property |
| η | [0.0005255; 0.0024769] | Pa×s | [209.36; 331.72] |
|
| η | 0.0024769 | Pa×s | 209.36 | Joback Calculated Property |
| η | 0.0017056 | Pa×s | 229.75 | Joback Calculated Property |
| η | 0.0012482 | Pa×s | 250.15 | Joback Calculated Property |
| η | 0.0009574 | Pa×s | 270.54 | Joback Calculated Property |
| η | 0.0007622 | Pa×s | 290.93 | Joback Calculated Property |
| η | 0.0006252 | Pa×s | 311.33 | Joback Calculated Property |
| η | 0.0005255 | Pa×s | 331.72 | Joback Calculated Property |
| ΔvapH | [17.60; 31.30] | kJ/mol | [206.00; 363.00] |
|
| ΔvapH | 17.60 | kJ/mol | 206.00 | NIST |
| ΔvapH | 31.30 | kJ/mol | 343.00 | NIST |
| ΔvapH | 29.80 | kJ/mol | 363.00 | NIST |
Correlations
| Property | Value | Unit | Temperature (K) | Source |
|---|---|---|---|---|
| Pvap | [5.85; 10296.51] | kPa | [265.85; 584.15] |
The Yaws Handbook of Vapor Pressure
|
| Equation | ln(Pvp) = A + B/(T + C) | |||
| Coefficient A | 1.47457e+01 | |||
| Coefficient B | -3.04378e+03 | |||
| Coefficient C | -3.13500e+01 | |||
| Temperature range, min. | 265.85 | |||
| Temperature range, max. | 584.15 | |||
| Pvap | 5.85 | kPa | 265.85 | Calculated Property |
| Pvap | 32.04 | kPa | 301.22 | Calculated Property |
| Pvap | 118.36 | kPa | 336.58 | Calculated Property |
| Pvap | 333.34 | kPa | 371.95 | Calculated Property |
| Pvap | 772.63 | kPa | 407.32 | Calculated Property |
| Pvap | 1549.81 | kPa | 442.68 | Calculated Property |
| Pvap | 2784.30 | kPa | 478.05 | Calculated Property |
| Pvap | 4590.08 | kPa | 513.42 | Calculated Property |
| Pvap | 7067.18 | kPa | 548.78 | Calculated Property |
| Pvap | 10296.51 | kPa | 584.15 | Calculated Property |
| Pvap | [1.37; 200.31] | kPa | [243.15; 354.00] |
KDB Vapor Pressure Data
|
| Equation | ln(Pvp) = A + B/T + C*ln(T) + D*T^2 | |||
| Coefficient A | 2.30793e+02 | |||
| Coefficient B | -1.11621e+04 | |||
| Coefficient C | -3.41575e+01 | |||
| Coefficient D | 5.20176e-05 | |||
| Temperature range, min. | 243.15 | |||
| Temperature range, max. | 354.00 | |||
| Pvap | 1.37 | kPa | 243.15 | Calculated Property |
| Pvap | 3.18 | kPa | 255.47 | Calculated Property |
| Pvap | 6.64 | kPa | 267.78 | Calculated Property |
| Pvap | 12.70 | kPa | 280.10 | Calculated Property |
| Pvap | 22.57 | kPa | 292.42 | Calculated Property |
| Pvap | 37.82 | kPa | 304.73 | Calculated Property |
| Pvap | 60.39 | kPa | 317.05 | Calculated Property |
| Pvap | 92.72 | kPa | 329.37 | Calculated Property |
| Pvap | 137.98 | kPa | 341.68 | Calculated Property |
| Pvap | 200.31 | kPa | 354.00 | Calculated Property |
Similar Compounds
Find more compounds similar to Bromine.
Sources
- KDB Vapor Pressure Data
- Cheméo Relay (1.0, beta) Beta: served but experimental, data-limited and below our cross-validation release bar; the Joback value is recommended where available.
- Crippen Method
- Crippen Method
- Standard molar enthalpies of formation of hydroxy-, chlor-, and bromapatite
- Joback Method
- McGowan Method
- NIST Webbook
- The Yaws Handbook of Vapor Pressure
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