Carbon tetrafluoride is also known as tetrafluoromethane and R-14. It is the simplest perfluorocarbon (CF4). and is a useful refrigerant but also a potent greenhouse gas.

**CAS No:** 75-73-0

## Properties

#### Generic Properties

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

Chemical Formula | CF4 | - |

Molecular Weight | 88.005 | - |

Heat of Combustion | -6136 | kJ/kg |

Boiling Point | 145.09 | K |

Freezing Point | 89.56 | K |

#### Critical Properties

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

Critical Temperature | 227.5 | K |

Critical Pressure | 37.39 | bar |

Critical Volume | 140 | cm3/mol |

Critical Density | 0.6286 | g/cm3 |

Critical Z | 0.277 | - |

Accentric Factor | 0.186 | - |

### Temperature Dependent Properties

#### Specific Heat

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

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

A | 15.278 | 21.905 | -0.815 |

B | 0.19916 | 0.98067 | 1.0828 |

C | -0.00016369 | -0.0070731 | -0.00031832 |

D | 5.169E-08 | 0.000021219 | - |

E | -3.182E-12 | - | - |

T min(K) | 100 | 91 | 15 |

T max(K) | 1500 | 205 | 76 |

#### Heat of Formation

The heat of formation can be calculated with the formula:

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

A | -931.05 |

B | -0.010833 |

C | 8.7647E-06 |

T min(K) | 298.15 |

T max (K) | 1000 |

#### Viscosity

The viscosity can be calculated with the formula:

For liquid

For Gas

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

A | 10.896 | 1.755 |

B | 0.5949 | 63.089 |

C | -0.00017559 | -0.0226 |

D | - | 0.000036212 |

T min(K) | 145 | 90 |

T max(K) | 900 | 216.13 |

#### Heat of Vaporization

The heat of vaporization can be calculated with the formula:

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

A | 16.659 |

n | 0.349 |

T min(K) | 89.56 |

T max(K) | 227.5 |

#### Thermal Conductivity

The thermal conductivity can be calculated with the formula:

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

A | -0.0088588 | 0.1962 |

B | 0.000084571 | -0.00033143 |

C | -6.905E-09 | -1.4129E-06 |

T min(K) | 145 | 119.56 |

T max(K) | 900 | 157.5 |

#### Liquid Density

The Liquid Density can be calculated with the Equation:

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

A | 0.6295 |

B | 0.2839 |

n | 0.291 |

T min(K) | 89.56 |

T max(K) | 227.5 |

#### Diffusion Coefficient at Infinite Dilution in Water

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

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

A | -1.3572 |

B | -1040.923 |

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 | -0.05841 |

B | 0.00040795 |

C | 7.4575E-07 |

T min(K) | 200 |

T max(K) | 1000 |