Other names include n-Butyl isocyanide, Butyl isocyanide, and 1-isocyanobutane.

**CAS no:** 2769-64-4

## Properties

#### Generic Properties

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

Chemical Formula | C5H9N | - |

Molecular Weight | 83.133 | - |

Heat of Combustion | 31846.5 | kJ/kg |

#### Critical Properties

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

Critical Temperature | 579.93 | K |

Critical Pressure | 33.68 | bar |

Critical Volume | 341.5 | cm3/mol |

Critical Density | 0.2434 | g/cm3 |

Critical Z | 0.239 | - |

Accentric Factor | 0.428 | - |

### Temperature Dependent Properties

#### Specific Heat

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

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

A | 15.343 | 104.089 |

B | 0.41362 | 0.59832 |

C | -0.0002172 | -0.001683 |

D | 0.000000042 | 2.3363E-06 |

E | 0 | - |

T min(K) | 273 | 226 |

T max(K) | 1000 | 489 |

#### Heat of Formation

The heat of formation can be calculated with the formula:

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

A | 61.775 |

B | -0.086536 |

C | 0.000045284 |

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 | -10.664 | -13.208 |

B | 0.2574 | 1898.7 |

C | -0.000043135 | 0.0299 |

D | - | -0.000026202 |

T min(K) | 250 | 293.15 |

T max(K) | 1000 | 550.93 |

#### Heat of Vaporization

The heat of vaporization can be calculated with the formula:

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

A | 55.25 |

n | 0.38 |

T min(K) | 215.7 |

T max(K) | 579.93 |

#### Thermal Conductivity

The thermal conductivity can be calculated with the formula:

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

A | -0.010008 | 0.2102 |

B | 0.000063353 | -0.000094769 |

C | 2.6006E-08 | -3.2103E-07 |

T min(K) | 250 | 245.7 |

T max(K) | 1000 | 509.93 |

#### Liquid Density

The Liquid Density can be calculated with the Equation:

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

A | 0.2434 |

B | 0.244 |

n | 0.2857 |

T min(K) | 215.7 |

T max(K) | 579.93 |

#### Diffusion Coefficient at Infinite Dilution in Water

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

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

A | -1.9917 |

B | -907.8591 |

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 | -0.02773 |

B | 0.00021942 |

C | 5.4101E-07 |

T min(K) | 200 |

T max(K) | 1000 |