Isopropanol

CAS RN: 67-63-0

Other Properties

Freezing point -89.5 deg C; forms azeotrope with water (bp 80.37 deg C, 760 mm Hg, density 0.83361 at 0 deg C/4 deg C) /Isopropanol 87.7% (wt/wt)/
% in saturated air: 5.8 (25 deg C); density of saturated air: 1.06 (Air = 1); 1 mg/L = 408 ppm and 1 ppm = 2.45 mg/cu m at 25 deg C, 760 mm Hg
Ratio of specific heats of vapor: 1.105; heat of solution: (est) -9 BTU/lb = -5 cal/g = -0.2X10+5 J/kg; heat of fusion 21.37 cal/g; Reid vapor pressure: 1.4 psia
BP 80.4 deg C at 101.3 kPa; surface tension 0.0214 mN/m at 20 deg C; index of refraction 1.3769 at 20 deg C and sodium light, vapor pressure 4.5 kPa at 20 deg C, viscosity 2.1 cp at 20 deg C, completely soluble in water /91% isopropanol/
Heat of fusion: 5.41 kJ/mol
Heat capacity (liquid): 2.604 J/g-K
Dielectric constant: 18.3 debye at 25 deg C; 16.24 debye at 40 deg C; dipole moment: 1.69 debye (gas), 1.66 debye in benzene at 30 deg C
Enthalpies of formation: -75.97 kcal/mole (liquid); -65.11 kcal/mole (gas); Gibbs (free) energies of formation: -43.09 kcal/mole (liquid); -41.44 kcal/mole (gas); Entropies: 43.16 cal/deg-mole (liquid); 74.07 cal/deg-mole (gas); Heat capacities: 36.06 cal/deg-mole (liquid); 21.21 cal/deg-mole (gas)
Heat of melting: 1.293 kcal/mole; heat of sublimation: 10.85 kcal/mole at 298 K; specific heat: 26.78 cal/Kmol at 400 K
Coefficient of expansion: 0.00107 per deg C; density correction: 0.00082 per deg C
Forms binary azeotropes with acrylonitrile, benzene, 2-bromobutane, 2-butanone, n-butylamine, butyl isopropyl ether, carbon disulfide, carbon tetrachloride, 1-chlorobutane, 2-chlorobutane, 1-chloro-3-methylbutane, 1,3-cyclohexdiene, cyclohexane, cyclohexene, diethoxymethane, diisobutylene, 2,3-dimethylbutane, 1,3-dimethylcyclohexane, 2,5-dimethylhexane, ethyl acetate, ethyl propyl ether, ethyl sulfide, ethylene dichloride, fluorobenzene, n-heptane, hexane, 1-iodo-2-methylpropane, isobutyl chloride, isopropyl acetate, isopropyl ether, methyl acrylate, methylcyclohexane, methylcyclopentane, methyl ethyl ketone, methyl isobutyrate, methyl propionate, octane, pentane, propyl ether, propyl formate, tetrachloroethylene, thiophene, toluene, trichloroethylene, vinyl acetate, water
Forms ternary azeotropes with water, benzene; water, cyclohexane; water, cyclohexene; water, diisobutylene; water, ethyl butyl ether; water, ethylene dichloride; water, isopropyl acetate; water, isopropyl ether; water, nitromethane; water, toluene
Liquid heat capacity: 0.605 BTU/lb-F at 70 deg F; Liquid thermal conductivity: 0.937 BTU-in/hr-sq ft-F at 70 deg F; Saturated vapor density: 0.00717 lb/cu ft at 70 deg F; Ideal gas heat capacity: 0.352 BTU/lb-F at 75 deg F
6.54 lb/gal at 20 deg C; acidity (as acetic acid) = 0.002 max wt%; flash point = 13 deg C; fir point 16 deg C
Henry's Law constant = 8.10X10-6 atm-cu m/mol at 25 deg C
Hydroxyl radical reaction rate constant = 5.07X10-12 cu cm/molecule-sec at 25 deg C
Find more information on this substance at: PubChem, PubMed