Isopropyl alcohol (data page)
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This page provides supplementary chemical data on isopropanol.
Material Safety Data Sheet
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Structure and properties
Structure and properties | |
---|---|
Index of refraction, nD | 1.3776 at 20°C |
Abbe number | ? |
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[1] | 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 |
Critical point | 508.7 K (235.6 °C), 5370 kPa |
Std enthalpy change of fusion, ΔfusH |
5.28 kJ/mol |
Std entropy change of fusion, ΔfusS |
28.6 J/(mol·K) |
Std enthalpy change of vaporization, ΔvapH |
44.0 kJ/mol |
Std entropy change of vaporization, ΔvapS |
124 J/(mol·K) |
Solid properties | |
Std enthalpy change of formation, ΔfH |
? kJ/mol |
Standard molar entropy, S |
? J/(mol K) |
Heat capacity, cp | 0.212 J/(mol K) at –200°C |
Liquid properties | |
Std enthalpy change of formation, ΔfH |
–318.2 kJ/mol |
Standard molar entropy, S |
180 J/(mol K) |
Heat capacity, cp | 2.68 J/(gK) at 20°C-25°C |
Gas properties | |
Std enthalpy change of formation, ΔfH |
–261.1 kJ/mol |
Standard molar entropy, S |
333 J/(mol K) |
Heat capacity, cp | 1.54 J/(gK) at 25°C |
Vapor pressure of liquid
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
See also
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Spectral data
UV-Vis | |
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λmax | 205 nm |
Extinction coefficient, ε | ? |
IR | |
Major absorption bands | ? 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) |
References
- ^ Lange's Handbook of Chemistry, 10th ed. pp 1669-1674
- ^ Parks, J. S.; B. Barton (1928). Journal of the American Chemical Society. 50: 24–26.
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(help) - ^ Barr-David, F; B. F. Dodge (1959). Journal of Chemical and Engineering Data. 4: 107–121.
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(help) - ^ a b c "Binary Vapor-Liquid Equilibrium Data" (Queriable database). Chemical Engineering Research Information Center. Retrieved 5 May 2007.
Except where noted otherwise, data relate to standard ambient temperature and pressure.