Isopropyl alcohol (data page)
In-game article clicks load inline without leaving the challenge.
This page provides supplementary chemical data on isopropanol.
Material Safety Data Sheet
The handling of this chemical may incur notable safety precautions. It is highly recommend that you seek the Material Safety Datasheet (MSDS) for this chemical from a reliable source such as , and follow its directions.
Structure and properties
| Structure and properties | |
|---|---|
| Dielectric constant, εr | 18.23 ε0 at 25 °C |
| Bond strength | ? |
| Bond length | ? |
| Bond angle | ? |
| Magnetic susceptibility | ? |
| Surface tension | 21.7 dyn/cm at 20 °C |
| Viscosity | 4.5646 mPa·s at 0 °C 2.3703 mPa·s at 20 °C 1.3311 mPa·s at 40 °C |
Thermodynamic properties
| Phase behavior | |
|---|---|
| Triple point | 184.9 K (−88.2 °C), ? Pa |
| Std entropy change of fusion, ΔfusSo | 28.6 J/(mol·K) |
| Std entropy change of vaporization, ΔvapSo | 124 J/(mol·K) |
| Solid properties | |
| Std enthalpy change of formation, ΔfHosolid | ? kJ/mol |
| Standard molar entropy, Sosolid | ? J/(mol K) |
| Heat capacity, cp | 0.212 J/(mol K) at −200 °C |
| Liquid properties | |
| Std enthalpy change of formation, ΔfHoliquid | −318.2 kJ/mol |
| Standard molar entropy, Soliquid | 180 J/(mol K) |
| Heat capacity, cp | 2.68 J/(gK) at 20 °C-25 °C |
| Gas properties | |
| Std enthalpy change of formation, ΔfHogas | −261.1 kJ/mol |
| Standard molar entropy, Sogas | 333 J/(mol K) |
| Heat capacity, cp | 1.54 J/(gK) at 25 °C |
Vapor pressure of Iso-propyl Alcohol
| P in mm Hg | 1 | 10 | 40 | 100 | 400 | 760 | 1520 | 3800 | 7600 | 15200 | 30400 | 45600 |
| T in °C | −26.1 | 2.4 | 23.8 | 39.5 | 67.8 | 82.5 | 101.3 | 130.2 | 155.7 | 186.0 | 220.2 | — |
Table data obtained from CRC Handbook of Chemistry and Physics 44th ed.
Distillation data
| BP temp. °C | % by mole isopropanol | |||
|---|---|---|---|---|
| Vapor-liquid equilibrium for isopropanol/water P = 760 mm Hg BP temp. °C % by mole isopropanol liquid vapor 82.2 100.00 100.00 81.48 95.35 93.25 80.70 87.25 83.40 80.37 80.90 77.45 80.23 76.50 73.70 80.11 69.55 69.15 80.16 66.05 67.15 80.15 64.60 66.45 80.31 55.90 62.55 80.38 51.45 60.75 80.67 44.60 59.20 80.90 38.35 57.00 81.28 29.80 55.10 81.29 29.75 55.40 81.23 28.35 55.30 81.62 24.50 53.90 81.75 19.35 53.20 81.58 18.95 53.75 81.99 16.65 52.15 82.32 12.15 51.20 82.70 10.00 50.15 84.57 5.70 45.65 88.05 3.65 36.55 93.40 1.60 21.15 95.17 1.15 16.30 100.0 0.00 0.00 | Vapor-liquid equilibrium for isopropanol/methanol P = 101.325 kPa BP temp. °C % by mole methanol liquid vapor 64.37 100.0 100.0 67.34 81.26 90.32 67.64 79.45 89.10 69.54 68.64 81.73 70.77 61.72 76.52 71.88 55.96 71.76 72.78 51.03 67.78 73.80 46.34 63.08 74.85 39.75 56.21 75.65 35.50 51.62 76.36 31.71 46.91 77.93 23.79 35.98 78.67 19.49 30.22 79.45 15.45 24.40 80.04 12.30 19.56 80.57 9.30 14.66 80.82 8.43 12.43 82.20 0.0 0.0 | Vapor-liquid equilibrium for isopropanol/acetone P = 101.325 kPa BP temp. °C % by mole acetone liquid vapor 77.92 6.12 19.90 76.71 8.28 25.52 71.50 19.59 47.03 70.99 20.91 48.90 69.20 26.01 55.29 68.85 27.10 56.50 65.91 37.55 66.12 63.55 48.12 73.37 63.42 48.74 73.75 62.46 53.77 76.63 62.37 54.27 76.91 61.85 57.22 78.49 61.86 57.12 78.43 | ||
| Vapor-liquid equilibrium for isopropanol/water P = 760 mm Hg | ||||
| liquid | vapor | |||
| 82.2 | 100.00 | 100.00 | ||
| 81.48 | 95.35 | 93.25 | ||
| 80.70 | 87.25 | 83.40 | ||
| 80.37 | 80.90 | 77.45 | ||
| 80.23 | 76.50 | 73.70 | ||
| 80.11 | 69.55 | 69.15 | ||
| 80.16 | 66.05 | 67.15 | ||
| 80.15 | 64.60 | 66.45 | ||
| 80.31 | 55.90 | 62.55 | ||
| 80.38 | 51.45 | 60.75 | ||
| 80.67 | 44.60 | 59.20 | ||
| 80.90 | 38.35 | 57.00 | ||
| 81.28 | 29.80 | 55.10 | ||
| 81.29 | 29.75 | 55.40 | ||
| 81.23 | 28.35 | 55.30 | ||
| 81.62 | 24.50 | 53.90 | ||
| 81.75 | 19.35 | 53.20 | ||
| 81.58 | 18.95 | 53.75 | ||
| 81.99 | 16.65 | 52.15 | ||
| 82.32 | 12.15 | 51.20 | ||
| 82.70 | 10.00 | 50.15 | ||
| 84.57 | 5.70 | 45.65 | ||
| 88.05 | 3.65 | 36.55 | ||
| 93.40 | 1.60 | 21.15 | ||
| 95.17 | 1.15 | 16.30 | ||
| 100.0 | 0.00 | 0.00 | ||
| Vapor-liquid equilibrium for isopropanol/methanol P = 101.325 kPa | ||||
| BP temp. °C | % by mole methanol | |||
| liquid | vapor | |||
| 64.37 | 100.0 | 100.0 | ||
| 67.34 | 81.26 | 90.32 | ||
| 67.64 | 79.45 | 89.10 | ||
| 69.54 | 68.64 | 81.73 | ||
| 70.77 | 61.72 | 76.52 | ||
| 71.88 | 55.96 | 71.76 | ||
| 72.78 | 51.03 | 67.78 | ||
| 73.80 | 46.34 | 63.08 | ||
| 74.85 | 39.75 | 56.21 | ||
| 75.65 | 35.50 | 51.62 | ||
| 76.36 | 31.71 | 46.91 | ||
| 77.93 | 23.79 | 35.98 | ||
| 78.67 | 19.49 | 30.22 | ||
| 79.45 | 15.45 | 24.40 | ||
| 80.04 | 12.30 | 19.56 | ||
| 80.57 | 9.30 | 14.66 | ||
| 80.82 | 8.43 | 12.43 | ||
| 82.20 | 0.0 | 0.0 | ||
| Vapor-liquid equilibrium for isopropanol/acetone P = 101.325 kPa | ||||
| BP temp. °C | % by mole acetone | |||
| liquid | vapor | |||
| 77.92 | 6.12 | 19.90 | ||
| 76.71 | 8.28 | 25.52 | ||
| 71.50 | 19.59 | 47.03 | ||
| 70.99 | 20.91 | 48.90 | ||
| 69.20 | 26.01 | 55.29 | ||
| 68.85 | 27.10 | 56.50 | ||
| 65.91 | 37.55 | 66.12 | ||
| 63.55 | 48.12 | 73.37 | ||
| 63.42 | 48.74 | 73.75 | ||
| 62.46 | 53.77 | 76.63 | ||
| 62.37 | 54.27 | 76.91 | ||
| 61.85 | 57.22 | 78.49 | ||
| 61.86 | 57.12 | 78.43 |
See also
- Tetrachloroethylene (data page)
Spectral data
| UV-Vis | |
|---|---|
| λmax | 205 nm |
| Extinction coefficient, ε | 100.2 m2/mol |
| IR | |
| Major absorption bands | 3334, 2970, 1466, 1378, 1160, 1128, 951, 817, 639 cm−1 |
| NMR | |
| Proton NMR | |
| Carbon-13 NMR | |
| Other NMR data | |
| MS | |
| Masses of main fragments | m/z (% of relative intensity): 45 (100), 43 (19.1), 27 (16.8), 29 (12.5), 19 (9.9), 15 (9.5), 41 (8.2), 31 (6.8), 39 (6.6), 42 (4.4) |
- Except where noted otherwise, data relate to Standard temperature and pressure.
- Reliability of data general note.