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Properties of substance:
2-propanol
skc-file
Synonyms:
propan-2-ol
isopropanol
IPA
i-propanol
isopropyl alcohol
Group of substances:
organic
Physical appearance:
colorless liquid
Empirical formula (Hill's system for organic substances):
C
3
H
8
O
Structural formula as text:
(CH3)2CHOH
Molar/atomic mass: 60.095
Melting point (°C):
-89.5
Boiling point (°C):
82.4
CAS №: 67-63-0
Solubility (g/100 g of solvent):
acetone
: soluble [
Ref.
]
benzene
: very soluble [
Ref.
]
diethyl ether
: miscible [
Ref.
]
ethanol
: miscible [
Ref.
]
water
: miscible [
Ref.
]
Multicomponent solubility (in wt%):
water 57.62%, IPA 39.2%, ammonium hydrogen phosphate 3.18%, 25 °C [
Ref.
]
water 61.61%, IPA 32.84%, ammonium hydrogen phosphate 5.55%, 25 °C [
Ref.
]
water 65.67%, IPA 24.8%, ammonium hydrogen phosphate 9.53%, 25 °C [
Ref.
]
water 67.16%, IPA 20.1%, ammonium hydrogen phosphate 12.74%, 25 °C [
Ref.
]
water 68.62%, IPA 14.9%, ammonium hydrogen phosphate 16.48%, 25 °C [
Ref.
]
water 68.7%, IPA 14.11%, ammonium hydrogen phosphate 17.19%, 25 °C [
Ref.
]
water 68.71%, IPA 13.19%, ammonium hydrogen phosphate 18.1%, 25 °C [
Ref.
]
water 68.01%, IPA 8.79%, ammonium hydrogen phosphate 23.2%, 25 °C [
Ref.
]
water 66.68%, IPA 6.18%, ammonium hydrogen phosphate 27.14%, 25 °C [
Ref.
]
water 63.54%, IPA 3.62%, ammonium hydrogen phosphate 32.84%, 25 °C [
Ref.
]
water 36.4%, IPA 63.5%, sodium carbonate 0.1%, 25 °C [
Ref.
]
water 51.49%, IPA 47.6%, sodium carbonate 0.91%, 25 °C [
Ref.
]
water 61.86%, IPA 35.8%, sodium carbonate 2.34%, 25 °C [
Ref.
]
water 74.12%, IPA 19.34%, sodium carbonate 6.54%, 25 °C [
Ref.
]
water 78.8%, IPA 1.6%, sodium carbonate 19.6%, 25 °C [
Ref.
]
water 59.27%, IPA 39.3%, magnesium sulfate 1.43%, 25 °C [
Ref.
]
water 76.1%, IPA 12.1%, magnesium sulfate 11.8%, 25 °C [
Ref.
]
water 74.5%, IPA 3.%, magnesium sulfate 22.5%, 25 °C [
Ref.
]
water 39.6%, IPA 49.5%, sodium nitrate 10.9%, 25 °C [
Ref.
]
water 56.35%, IPA 19.25%, sodium nitrate 24.4%, 25 °C [
Ref.
]
water 53.2%, IPA 3.%, sodium nitrate 43.8%, 25 °C [
Ref.
]
water 30.3%, IPA 69.6%, potash 0.1%, 25 °C [
Ref.
]
water 76.04%, IPA 10.1%, potash 13.86%, 25 °C [
Ref.
]
water 47.1%, IPA 0.23%, potash 52.67%, 25 °C [
Ref.
]
water 51.3%, IPA 45.58%, ammonium sulfate 3.12%, 25 °C [
Ref.
]
water 71.7%, IPA 14.2%, ammonium sulfate 14.1%, 25 °C [
Ref.
]
water 57.53%, IPA 0.97%, ammonium sulfate 41.5%, 25 °C [
Ref.
]
water 40.93%, IPA 53.95%, potassium chloride 5.12%, 25 °C [
Ref.
]
water 54.69%, IPA 36.14%, potassium chloride 9.17%, 25 °C [
Ref.
]
water 68.8%, IPA 13.72%, potassium chloride 17.48%, 25 °C [
Ref.
]
water 33.2%, IPA 65.8%, potassium fluoride 1.%, 25 °C [
Ref.
]
water 75.6%, IPA 15.1%, potassium fluoride 9.3%, 25 °C [
Ref.
]
water 53.09%, IPA 0.16%, potassium fluoride 46.75%, 25 °C [
Ref.
]
water 23.1%, IPA 75.2%, sodium chloride 1.7%, 25 °C [
Ref.
]
water 64.38%, IPA 25.45%, sodium chloride 10.17%, 25 °C [
Ref.
]
water 73.%, IPA 5.9%, sodium chloride 21.1%, 25 °C [
Ref.
]
water 26.6%, IPA 62.1%, sodium bromide 11.3%, 25 °C [
Ref.
]
water 46.9%, IPA 29.5%, sodium bromide 23.6%, 25 °C [
Ref.
]
water 53.3%, IPA 4.1%, sodium bromide 42.6%, 25 °C [
Ref.
]
(layer 1): water 49.65%, IPA 48.54%, potash 1.81%, (layer 2): water 75.89%, IPA 8.99%, potash 15.12%, 25 °C [
Ref.
]
(layer 1): water 24.26%, IPA 75.17%, potash 0.58%, (layer 2): water 69.79%, IPA 0.79%, potash 29.42%, 25 °C [
Ref.
]
(layer 1): water 7.07%, IPA 92.85%, potash 0.18%, (layer 2): water 50.45%, IPA 0.05%, potash 49.5%, 25 °C [
Ref.
]
Properties of solutions:
1% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.056 (20°)
Density (g/cm
3
) = 0.996 (20°)
Index of refraction = 1.3338 (20°)
Freezing point (°C) = -0.3
2% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.112 (20°)
Density (g/cm
3
) = 0.9939 (20°)
3% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.166 (20°)
Density (g/cm
3
) = 0.992 (20°)
4% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.225 (20°)
Density (g/cm
3
) = 0.9902 (20°)
5% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.287 (20°)
Density (g/cm
3
) = 0.9884 (20°)
6% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.352 (20°)
Density (g/cm
3
) = 0.9871 (20°)
7% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.417 (20°)
Density (g/cm
3
) = 0.9855 (20°)
8% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.485 (20°)
Density (g/cm
3
) = 0.9843 (20°)
9% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.553 (20°)
Density (g/cm
3
) = 0.9831 (20°)
10% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.629 (20°)
Density (g/cm
3
) = 0.9816 (20°)
Index of refraction = 1.342 (20°)
Freezing point (°C) = -3.48
12% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.794 (20°)
Density (g/cm
3
) = 0.9793 (20°)
14% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 1.97 (20°)
Density (g/cm
3
) = 0.9772 (20°)
16% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 2.16 (20°)
Density (g/cm
3
) = 0.9751 (20°)
18% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 2.352 (20°)
Density (g/cm
3
) = 0.9725 (20°)
20% (wt.), solvent - water
Dynamic viscosity (mPa·s) = 2.55 (20°)
Density (g/cm
3
) = 0.9696 (20°)
Index of refraction = 1.3514 (20°)
Freezing point (°C) = -8.52
40% (wt.), solvent - water
Density (g/cm
3
) = 0.9302 (20°)
Index of refraction = 1.3642 (20°)
60% (wt.), solvent - water
Density (g/cm
3
) = 0.8824 (20°)
Index of refraction = 1.3717 (20°)
80% (wt.), solvent - water
Density (g/cm
3
) = 0.8341 (20°)
Index of refraction = 1.3742 (20°)
Density:
0.7851 (20°C, g/cm
3
)
Reactions:
Yeild 80%. [
Ref.1
]
C
6
H
6
+ (CH
3
)
2
CHOH → (CH
3
)
2
CHC
6
H
5
+ H
2
O
Refractive index (n
D
):
1.3776 (20°C)
Vapour pressure (Torr):
1 (-26.1°C)
10 (2.4°C)
40 (23.8°C)
100 (39.5°C)
400 (67.8°C)
1020.7 (90°C)
Dissociation:
pK
a
(1) = 16.94 (25°C, water)
Dipole moment (D):
1.66 (20°C)
Viscosity (mPa·s):
2.43 (20°C)
Surface tension (mN/m):
21.7 (20°C)
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-318.7 (l)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
180 (l)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
155.2 (l)
Molar enthalpy (heat) of fusion Δ
fus
H (kJ/mol):
5.37
Flash point (°C):
11.7
Autoignition temperature (°C):
400
Heat of combustion (kJ/mol):
2003.8
Standard molar enthalpy (heat) of formation Δ
f
H
0
(298.15 K, kJ/mol):
-272.6 (g)
Standard molar entropy S
0
(298.15 K, J/(mol·K)):
309.2 (g)
Molar heat capacity at constant pressure C
p
(298.15 K, J/(mol·K)):
89.3 (g)
LD
50
(mg/kg):
5000 (white rats, oral)
Critical temperature (°C):
235.6
Critical pressure (MPa):
5.38
References:
CRC Handbook of Chemistry and Physics. - 90ed. - CRC Press, 2010. - pp. 5-25
Smallwood I.M. Handbook of organic solvent properties. - 1996. - pp. 73-75
The Merck Index 11th ed., Merck & Company, 1989. - pp. 820
Рабинович В.А., Хавин З.Я. Краткий химический справочник. - Л.: Химия, 1977. - pp. 175 [Russian]
Справочник химика. - Т. 2. - Л.-М.: Химия, 1964. - pp. 688-689 [Russian]
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© Collected Ruslan Anatolievich Kiper, burewestnik@mail.ru