Other names include 2-Methylbutyronitrile, alpha-Methylbutyronitrile, 2-methyl-2-Methylbutanone, and sec-Butyl Cyanide.

**CAS no:** 18936-17-9

## Properties

#### Generic Properties

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

Chemical Formula | C5H9N | - |

Molecular Weight | 83.133 | - |

Heat of Combustion | 31441.7 | kJ/kg |

Flash Point | 308.15 | K |

#### Critical Properties

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

Critical Temperature | 585.8 | K |

Critical Pressure | 34 | bar |

Critical Volume | 335.5 | cm3/mol |

Critical Density | 0.2478 | g/cm3 |

Critical Z | 0.234 | - |

Accentric Factor | 0.397 | - |

### Temperature Dependent Properties

#### Specific Heat

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

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

A | 13.661 | 110.968 | 5 |

B | 0.41954 | 0.51206 | 0.63125 |

C | -0.0002204 | -0.0014295 | - |

D | 4.15E-08 | 2.0569E-06 | - |

E | 0 | - | - |

T min(K) | 273 | 206 | 80 |

T max(K) | 1000 | 492 | 190 |

#### Heat of Formation

The heat of formation can be calculated with the formula:

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

A | 26.389 |

B | -0.086748 |

C | 0.000045835 |

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 | -11.037 | -5.5558 |

B | 0.2599 | 855.03 |

C | -0.000043629 | 0.012 |

D | - | -0.000012472 |

T min(K) | 250 | 293.15 |

T max(K) | 1000 | 556.51 |

#### Heat of Vaporization

The heat of vaporization can be calculated with the formula:

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

A | 54.519 |

n | 0.38 |

T min(K) | 195.6 |

T max(K) | 585.8 |

#### Thermal Conductivity

The thermal conductivity can be calculated with the formula:

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

A | -0.010315 | 0.211 |

B | 0.000064617 | -0.0001047 |

C | 2.5822E-08 | -2.9906E-07 |

T min(K) | 250 | 225.6 |

T max(K) | 1000 | 515.8 |

#### Liquid Density

The Liquid Density can be calculated with the Equation:

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

A | 0.2478 |

B | 0.2445 |

n | 0.2857 |

T min(K) | 195.6 |

T max(K) | 585.8 |

#### Saturation Pressure

The Saturation Pressure can be calculated with the Antoine Equation:

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

A | 6.89173 |

B | 1223.31 |

C | 179.596 |

T min(C) | 46.3322 |

T max(C) | 312.652 |

#### Diffusion Coefficient at Infinite Dilution in Water

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

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

A | -1.9861 |

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 | -0.02796 |

B | 0.00022118 |

C | 5.4578E-07 |

T min(K) | 200 |

T max(K) | 1000 |