It is a colorless non-flammable liquid. It is one of the most effective fire extinguishers, however, it is the most toxic one.

**CAS no: **75-61-6

## Properties

#### Generic Properties

Property | Value | Unit |
---|---|---|

Chemical Formula | CBr2F2 | - |

Molecular Weight | 209.816 | - |

Heat of Combustion | -114.4 | kJ/kg |

#### Critical Properties

Property | Value | Unit |
---|---|---|

Critical Temperature | 478 | K |

Critical Pressure | 53.3 | bar |

Critical Volume | 249 | cm3/mol |

Critical Density | 0.8426 | g/cm3 |

Critical Z | 0.334 | - |

Accentric Factor | 0.2 | - |

### Temperature Dependent Properties

#### Specific Heat

The specific heat at constant pressure can be calculated with the formula:

Constant | Gas | Liquid |
---|---|---|

A | 22.399 | 82.166 |

B | 0.27403 | 0.23819 |

C | -0.00037433 | -0.00074761 |

D | 2.364E-07 | 1.4805E-06 |

E | -5.6067E-11 | - |

T min (K) | 100 | 173 |

T max (K) | 1500 | 387 |

#### Heat of Formation

The heat of formation can be calculated with the formula:

Constant | Value |
---|---|

A | -419.87 |

B | 0.0053364 |

C | 1.3353E-06 |

T min(K) | 332.62 |

T max (K) | 1000 |

#### Viscosity

The viscosity can be calculated with the formula:

For liquid

For Gas

Constant | Gas | Liquid |
---|---|---|

A | -18.809 | -2.3825 |

B | 0.6222 | 343.61 |

C | -0.0001238 | 0.0061 |

D | - | -9.9243E-06 |

T min(K) | 250 | 220 |

T max(K) | 1000 | 478 |

#### Heat of Vaporization

The heat of vaporization can be calculated with the formula:

Constant | Value |
---|---|

A | 39.175 |

n | 0.399 |

T min(K) | 163.05 |

T max(K) | 478 |

#### Thermal Conductivity

The thermal conductivity can be calculated with the formula:

Constant | Gas | Liquid |
---|---|---|

A | -0.0068122 | 0.1233 |

B | 0.000044746 | -0.00009009 |

C | -6.674E-09 | -2.2814E-07 |

T min(K) | 250 | 193.05 |

T max(K) | 1000 | 408 |

#### Liquid Density

The Liquid Density can be calculated with the Equation:

Constant | Value |
---|---|

A | 0.8426 |

B | 0.2772 |

n | 0.2626 |

T min(K) | 163.05 |

T max(K) | 478 |

#### Saturation Pressure

The Saturation Pressure can be calculated with the Antoine Equation:

Constant | Value |
---|---|

A | 7.22244 |

B | 1203.61 |

C | 254.436 |

T min(C) | -110.1 |

T max(C) | 204.85 |

#### Diffusion Coefficient at Infinite Dilution in Water

The Diffusion Coefficient at Infinite Dilution in Water can be calculation:

Constant | Value |
---|---|

A | -1.454 |

B | -1053.704 |

T Min(K) | 274 |

T Max(K) | 394 |

#### Diffusion Coefficient in Air

The Diffusion Coefficient in Air can be calculated with the Equation:

Constant | Value |
---|---|

A | -0.038 |

B | 0.00027469 |

C | 5.5222E-07 |

T min(K) | 200 |

T max(K) | 1000 |