# 1-Propanol (data page)

This page provides supplementary chemical data on 1-Propanol (n-propanol).

## 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.

## Structure and properties

Structure and properties :
| Index of refraction, n$_D$ | 1.383 at 25 °C |
| Abbe number | ? |
| Dielectric constant, ε$_r$ | 20.1 ε$_0$ at 25 °C |
| Bond strength | ? |
| Bond length | ? |
| Bond angle | ? |
| Magnetic susceptibility | ? |
| Surface tension | 23.78 dyn/cm at 20 °C |
| Viscosity | 3.893 mPa·sat 0 °C 2.52 mPa·sat 15 °C 2.256 mPa·sat 20 °C 1.72 mPa·sat 30 °C 1.405 mPa·sat 40 °C 1.130 mPa·sat 50 °C 0.760 mPa·sat 70 °C |

## Thermodynamic properties

Phase behavior :
| Triple point | 148.75 K (–124.4 °C), ? Pa |
| Critical point | 536.9 K (263.8 °C), 5200 kPa |
| Std enthalpy change of fusion, Δ$_{fus}$H$^o$ | 5.37 kJ/mol |
| Std entropy change of fusion, Δ$_{fus}$S$^o$ | 36 J/(mol·K) |
| Std enthalpy change of vaporization, Δ$_{vap}$H$^o$ | 47.5 kJ/mol |
| Std entropy change of vaporization, Δ$_{vap}$S$^o$ | 126.6 J/(mol·K) |
| Solid properties ||
| Std enthalpy change of formation, Δ$_f$H$^o$$_{solid}$ | -763 kJ/mol |
| Standard molar entropy, S$^o$$_{solid}$ | 112.7 J/(mol K) |
| Heat capacity, c$_p$ | 106.3 J/(mol K) at –124 °C |
| Liquid properties ||
| Std enthalpy change of formation, Δ$_f$H$^o$$_{liquid}$ | –303.0 kJ/mol |
| Standard molar entropy, S$^o$$_{liquid}$ | 192.8 J/(mol K) |
| Enthalpy of combustion, Δ$_c$H$^o$ | –2021 kJ/mol |
| Heat capacity, c$_p$ | 144.4 J/(mol K) |
| Gas properties ||
| Std enthalpy change of formation, Δ$_f$H$^o$$_{gas}$ | –255 kJ/mol |
| Standard molar entropy, S$^o$$_{gas}$ | 322.49 J/(mol K) |
| Heat capacity, c$_p$ | 85.56 J/(mol K) at 25° |
| van der Waals' constants | a = 1512 L$^2$ kPa/mol$^2$ b = 0.1029 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 | –15.0 | 14.7 | 36.4 | 52.8 | 82.0 | 97.8 | 117.0 | 149.0 | 177.0 | 210.8 | 250.0 | — |
Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.

## Distillation data

Vapor-liquid Equilibrium for n-propanol/Water P = 100 kPa :
| BP Temp. °C | % by mole water | % by mole water |
| BP Temp. °C | liquid | vapor |
| 96.60 | 0.00 | 0.00 |
| 96.25 | 1.3 | 2.5 |
| 94.69 | 3.8 | 9.7 |
| 92.92 | 8.3 | 19.4 |
| 90.64 | 16.0 | 31.7 |
| 89.31 | 22.6 | 39.0 |
| 88.48 | 28.3 | 43.7 |
| 87.67 | 35.6 | 48.7 |
| 87.32 | 42.6 | 52.2 |
| 87.18 | 50.0 | 55.0 |
| 87.13 | 58.3 | 57.2 |
| 87.12 | 64.8 | 58.5 |
| 87.17 | 70.8 | 59.5 |
| 87.29 | 76.3 | 60.3 |
| 87.47 | 81.7 | 60.8 |
| 87.63 | 85.3 | 61.3 |
| 87.78 | 88.3 | 61.9 |
| 87.97 | 91.1 | 62.7 |
| 88.28 | 92.6 | 63.2 |
| 88.62 | 94.5 | 64.3 |
| 89.26 | 95.7 | 66.3 |
| 90.15 | 96.7 | 68.3 |
| 91.91 | 97.8 | 73.9 |
| 93.72 | 98.5 | 79.4 |
| 95.56 | 99.1 | 85.4 |
| 97.08 | 99.6 | 90.5 |
| 98.80 | 99.9 | 98.4 |
| 99.63 | 100.0 | 100.0 |
Vapor-liquid Equilibrium for n-propanol/Methanol P = 760 mm Hg :
| BP Temp. °C | % by mole methanol | % by mole methanol |
| BP Temp. °C | liquid | vapor |
| 92.30 | 9.2 | 23.5 |
| 88.88 | 18.0 | 41.2 |
| 83.90 | 28.0 | 56.2 |
| 82.53 | 32.0 | 61.0 |
| 80.25 | 38.0 | 67.5 |
| 78.15 | 45.9 | 75.3 |
| 74.46 | 58.1 | 83.2 |
| 74.42 | 58.3 | 83.5 |
| 71.28 | 68.0 | 88.8 |
| 69.40 | 76.4 | 92.8 |
| 68.30 | 82.2 | 94.0 |
| 67.08 | 86.2 | 95.5 |
Vapor-liquid Equilibrium for n-propanol/Butanone P = 760 mm Hg :
| BP Temp. °C | % by mole butanone | % by mole butanone |
| BP Temp. °C | liquid | vapor |
| 94.8 | 5.4 | 12.5 |
| 93.0 | 9.3 | 20.6 |
| 91.8 | 12.8 | 27.1 |
| 90.3 | 17.1 | 33.7 |
| 88.9 | 23.5 | 41.3 |
| 87.7 | 28.4 | 46.9 |
| 86.1 | 36.6 | 54.7 |
| 84.9 | 44.0 | 60.5 |
| 83.8 | 53.3 | 67.7 |
| 83.5 | 57.2 | 70.1 |
| 82.5 | 64.1 | 74.8 |
| 81.6 | 73.0 | 81.0 |
| 81.0 | 80.4 | 85.9 |
| 80.4 | 87.9 | 90.9 |
| 79.9 | 94.3 | 95.7 |
Vapor-liquid Equilibrium for n-propanol/Cyclohexane P = 101.325 kPa :
| BP Temp. °C | % by mole cyclohexane | % by mole cyclohexane |
| BP Temp. °C | liquid | vapor |
| 80.42 | 100 | 100 |
| 77.42 | 96.46 | 88.36 |
| 76.40 | 95.27 | 85.29 |
| 75.71 | 93.97 | 83.35 |
| 75.18 | 91.59 | 80.91 |
| 74.92 | 89.52 | 79.43 |
| 74.59 | 86.19 | 77.89 |
| 74.40 | 80.52 | 76.29 |
| 74.33 | 78.11 | 75.69 |
| 74.29 | 75.91 | 75.13 |
| 74.27 | 74.19 | 74.75 |
| 74.28 | 71.43 | 74.30 |
| 74.33 | 68.00 | 73.70 |
| 74.43 | 64.26 | 72.87 |
| 74.49 | 61.21 | 72.20 |
| 74.77 | 54.09 | 70.71 |
| 75.23 | 48.00 | 69.53 |
| 75.59 | 41.10 | 67.48 |
| 76.78 | 33.29 | 64.73 |
| 77.72 | 28.53 | 62.71 |
| 79.12 | 23.01 | 59.03 |
| 81.11 | 17.35 | 53.39 |
| 82.69 | 14.44 | 49.70 |
| 84.90 | 10.73 | 42.87 |
| 86.64 | 8.44 | 38.28 |
| 89.34 | 4.75 | 28.90 |
| 90.65 | 3.60 | 24.39 |
| 91.88 | 2.70 | 19.94 |
| 92.85 | 2.13 | 16.06 |
| 93.44 | 1.64 | 13.64 |
| 97.0 | 0.0 | 0.0 |
Vapor-liquid Equilibrium for n-propanol/n-Hexane P = 760 mm Hg :
| BP Temp. °C | % by mole n-propanol | % by mole n-propanol |
| BP Temp. °C | liquid | vapor |
| 77.70 | 2.3 | 13.6 |
| 70.05 | 6.0 | 25.7 |
| 68.25 | 11.7 | 42.4 |
| 64.70 | 21.0 | 55.8 |
| 64.10 | 24.6 | 60.0 |
| 63.90 | 28.6 | 63.7 |
| 62.25 | 39.8 | 67.2 |
| 62.20 | 41.7 | 67.2 |
| 61.90 | 49.3 | 69.1 |
| 61.55 | 59.3 | 70.6 |
| 61.60 | 65.7 | 72.0 |
| 61.65 | 67.3 | 72.5 |
| 61.60 | 72.8 | 72.7 |
| 61.80 | 87.2 | 75.8 |
| 62.50 | 92.3 | 79.9 |
| 63.90 | 97.5 | 85.6 |
Vapor-liquid Equilibrium for n-propanol/Acetone P = 760 mm Hg :
| BP Temp. °C | % by mole acetone | % by mole acetone |
| BP Temp. °C | liquid | vapor |
| 86.55 | 10.80 | 40.31 |
| 78.35 | 24.17 | 63.36 |
| 72.65 | 35.55 | 74.32 |
| 68.50 | 47.42 | 81.76 |
| 65.00 | 60.74 | 87.74 |
| 62.85 | 71.29 | 91.51 |

## 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 | |