It is a colorless, volatile liquid with a chloroform-like, sweet odor. It is widely used as a solvent. It is also known as methylene chloride.

**CAS no: **75-09-2

## Properties

#### Generic Properties

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

Chemical Formula | CH2Cl2 | - |

Molecular Weight | 84.932 | - |

Heat of Combustion | 6022.7 | kJ/kg |

Boiling Point | 312.9 | K |

Freezing Point | 178.01 | K |

Flash Point | 269.26 | K |

Auto Ignition | 935.37 | K |

LEL | 15.5 | vol % |

UEL | 66 | vol % |

#### Critical Properties

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

Critical Temperature | 510 | K |

Critical Pressure | 60.8 | bar |

Critical Volume | 185 | cm3/mol |

Critical Density | 0.4591 | g/cm3 |

Critical Z | 0.265 | - |

Accentric Factor | 0.192 | - |

### Temperature Dependent Properties

#### Specific Heat

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

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

A | 26.694 | 38.941 |

B | 0.083984 | 0.49008 |

C | 8.9712E-06 | -0.0016224 |

D | -5.092E-08 | 2.3069E-06 |

E | 1.8726E-11 | - |

T min(K) | 100 | 179 |

T max(K) | 1500 | 459 |

#### Heat of Formation

The heat of formation can be calculated with the formula:

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

A | -88.643 |

B | -0.026784 |

C | 0.000013816 |

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 | -11.586 | -5.1043 |

B | 0.3969 | 686.53 |

C | -0.000070319 | 0.0125 |

D | - | -0.00001454 |

T min(K) | 250 | 208 |

T max(K) | 1000 | 510 |

#### Heat of Vaporization

The heat of vaporization can be calculated with the formula:

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

A | 41.91 |

n | 0.41 |

T min(K) | 178.01 |

T max(K) | 510 |

#### Thermal Conductivity

The thermal conductivity can be calculated with the formula:

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

A | -0.00122 | 0.2456 |

B | 0.00001844 | -0.00028022 |

C | 3.5385E-08 | -2.485E-07 |

T min(K) | 250 | 178 |

T max(K) | 500 | 485 |

#### Liquid Density

The Liquid Density can be calculated with the Equation:

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

A | 0.4597 |

B | 0.2568 |

n | 0.2902 |

T min(K) | 178.01 |

T max(K) | 510 |

#### Saturation Pressure

The Saturation Pressure can be calculated with the Antoine Equation:

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

A | 7.11464 |

B | 1152.41 |

C | 232.442 |

T min(C) | -95.14 |

T max(C) | 236.85 |

#### Diffusion Coefficient at Infinite Dilution in Water

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

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

A | -1.3916 |

B | -1045.463 |

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 | -0.05686 |

B | 0.00033534 |

C | 6.8151E-07 |

T min(K) | 200 |

T max(K) | 1000 |