# Carbon disulfide (data page)

This page provides supplementary chemical data on carbon disulfide.

## Material Safety Data Sheet

The handling of this chemical may incur notable safety precautions. It is highly recommended that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as SIRI, and follow its direction. MSDS available from Mallinckrodt Baker

## Structure and properties

Structure and properties :
| Index of refraction, n$_D$ | 1.6276 at 20 °C |
| Abbe number | ? |
| Dielectric constant, ε$_r$ | 2.641 ε$_0$ at 20 °C |
| Bond strength | ? |
| Bond length | ? |
| Bond angle | ? |
| Magnetic susceptibility | ? |
| Surface tension | 35.3 dyn/cm at 0 °C 32.3 dyn/cm at 20 °C |
| Viscosity | 0.495 mPa·s at –10 °C 0.436 mPa·s at 0 °C 0.380 mPa·s at 5 °C 0.363 mPa·s at 20 °C |

## Thermodynamic properties

Phase behavior :
| Triple point | 161.11 K (–112.04 °C), ? Pa |
| Critical point | 552 K (279 °C), 7900.00 kPa |
| Std enthalpy change of fusion, Δ$_{fus}$H$^o$ | 4.39 kJ/mol |
| Std entropy change of fusion, Δ$_{fus}$S$^o$ | ? J/(mol·K) |
| Std enthalpy change of vaporization, Δ$_{vap}$H$^o$ | 27.65 kJ/mol |
| Std entropy change of vaporization, Δ$_{vap}$S$^o$ | 86.68 J/(mol·K) |
| Solid properties ||
| Std enthalpy change of formation, Δ$_f$H$^o$$_{solid}$ | ? kJ/mol |
| Standard molar entropy, S$^o$$_{solid}$ | ? J/(mol K) |
| Heat capacity, c$_p$ | ? J/(mol K) |
| Liquid properties ||
| Std enthalpy change of formation, Δ$_f$H$^o$$_{liquid}$ | 89.41 kJ/mol |
| Standard molar entropy, S$^o$$_{liquid}$ | 151.0 J/(mol K) |
| Enthalpy of combustion, Δ$_c$H$^o$$_{liquid}$ | –1687.2 kJ/mol |
| Heat capacity, c$_p$ | 78.99 J/(mol K) at 25 °C |
| Gas properties ||
| Std enthalpy change of formation, Δ$_f$H$^o$$_{gas}$ | 117.1 kJ/mol |
| Standard molar entropy, S$^o$$_{gas}$ | 237.98 J/(mol K) at 101.325 kPa |
| Enthalpy of combustion, Δ$_c$H$^o$$_{gas}$ | –1112 kJ/mol |
| Heat capacity, c$_p$ | 45.66 J/(mol K) |
| van der Waals' constants | a = 1177 L$^2$ kPa/mol$^2$ b = 0.07685 liter per mole |

## Vapor pressure of liquid

| P in mm Hg | P in mm Hg | 1 | 10 | 40 | 100 | 400 | 760 | 1520 | 3800 | 7600 | 15200 | 30400 | 45600 |
| T in °C | T in °C | –73.8 | –44.7 | –22.5 | –5.1 | 28.0 | 46.5 | 69.1 | 104.8 | 136.3 | 175.5 | 222.8 | 256.0 |
Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

## Distillation data

Vapor-liquid Equilibrium for Carbon disulfide/Methanol P = 760 mm Hg :
| BP Temp. °C | % by mole carbon disulfide | % by mole carbon disulfide |
| BP Temp. °C | liquid | vapor |
| 58.8 | 1.3 | 20.6 |
| 53.0 | 2.5 | 34.9 |
| 47.8 | 4.5 | 48.7 |
| 43.5 | 9.9 | 65.3 |
| 42.8 | 10.6 | 65.9 |
| 40.0 | 15.1 | 67.6 |
| 38.9 | 19.4 | 70.1 |
| 38.5 | 20.0 | 69.1 |
| 38.0 | 34.0 | 69.8 |
| 37.8 | 64.9 | 70.1 |
| 37.6 | 70.0 | 70.1 |
| 37.9 | 75.7 | 70.5 |
| 37.8 | 90.3 | 72.3 |
| 37.7 | 91.6 | 73.4 |
| 37.8 | 92.8 | 72.7 |
| 38.2 | 93.0 | 72.9 |
| 41.0 | 99.0 | 84.4 |
| 44.1 | 99.7 | 99.5 |

## Spectral data

UV-Vis :
| λ$_{max}$ | ? nm |
| Extinction coefficient, ε | ? |
| IR ||
| Major absorption bands | ? cm$^{−1}$ |
| NMR ||
| Proton NMR | |
| Carbon-13 NMR | |
| Other NMR data | |
| MS ||
| Masses of main fragments | |