Methyl chloride is also called chloromethane, Refrigerant-40, R-40 or HCC 40. It is a colorless, odorless, flammable gas.

**CAS No: **74-87-3

## Properties

#### Generic Properties

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

Chemical Formula | CH3Cl | - |

Molecular Weight | 50.487 | - |

Heat of Combustion | 13353.8 | kJ/kg |

Boiling Point | 248.93 | K |

Freezing Point | 175.45 | K |

#### Critical Properties

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

Critical Temperature | 416.25 | K |

Critical Pressure | 66.79 | bar |

Critical Volume | 139 | cm3/mol |

Critical Density | 0.3632 | g/cm3 |

Critical Z | 0.268 | - |

Accentric Factor | 0.153 | - |

### Temperature Dependent Properties

#### Specific Heat

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

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

A | 27.385 | 11.381 | -6.229 |

B | 0.026036 | 0.62328 | 0.76944 |

C | 0.0001032 | -0.0024353 | -0.0020175 |

D | -1.089E-07 | 3.8333E-06 | - |

E | 3.1642E-11 | - | - |

T min(K) | 150 | 176 | 80 |

T max(K) | 1500 | 375 | 175 |

#### Heat of Formation

The heat of formation can be calculated with the formula:

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

A | -72.431 |

B | -0.037035 |

C | 0.000016569 |

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 | -1.3735 | -7.3473 |

B | 0.3863 | 853.95 |

C | -0.00004865 | 0.0195 |

D | - | -0.000023484 |

T min(K) | 230 | 249 |

T max(K) | 700 | 416 |

#### Heat of Vaporization

The heat of vaporization can be calculated with the formula:

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

A | 32.534 |

n | 0.452 |

T min(K) | 175.43 |

T max(K) | 416.25 |

#### Thermal Conductivity

The thermal conductivity can be calculated with the formula:

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

A | -0.00185 | 0.3856 |

B | 0.000020296 | -0.00062865 |

C | 7.3234E-08 | -4.4458E-07 |

T min(K) | 213 | 175 |

T max(K) | 750 | 395 |

#### Liquid Density

The Liquid Density can be calculated with the Equation:

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

A | 0.3582 |

B | 0.2611 |

n | 0.2869 |

T min(K) | 175.45 |

T max(K) | 416.25 |

#### Diffusion Coefficient at Infinite Dilution in Water

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

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

A | -1.322 |

B | -1044.958 |

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 | -0.06925 |

B | 0.00042133 |

C | 8.2225E-07 |

T min(K) | 200 |

T max(K) | 1000 |

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