Isopropyl alcohol (data page)

This page provides supplementary chemical data on isopropanol.

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1 Material Safety Data Sheet
2 Structure and properties
3 Thermodynamic properties
4 Vapor pressure of liquid
5 Distillation data
6 Spectral data
7 References

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 SIRI, and follow its directions.

Structure and properties

Structure and properties
Index of refraction, n_D	1.3776 at 20°C
Abbe number	?
Dielectric constant, ε_r	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, Δ_fusH^o	5.28 kJ/mol
Std entropy change of fusion, Δ_fusS^o	28.6 J/(mol·K)
Std enthalpy change of vaporization, Δ_vapH^o	44.0 kJ/mol
Std entropy change of vaporization, Δ_vapS^o	124 J/(mol·K)
Solid properties
Std enthalpy change of formation, Δ_fH^o_solid	? kJ/mol
Standard molar entropy, S^o_solid	? J/(mol K)
Heat capacity, c_p	0.212 J/(mol K) at –200°C
Liquid properties
Std enthalpy change of formation, Δ_fH^o_liquid	–318.2 kJ/mol
Standard molar entropy, S^o_liquid	180 J/(mol K)
Heat capacity, c_p	154 J/(mol K) at 20°C-25°C
Gas properties
Std enthalpy change of formation, Δ_fH^o_gas	–261.1 kJ/mol
Standard molar entropy, S^o_gas	333 J/(mol K)
Heat capacity, c_p	89.32 J/(mol K) 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

Tetrachloroethylene (data page)

BP Temp. °C	% by mole isopropanol
Vapor-liquid Equilibrium for Isopropanol/Water^[2] P = 760 mm Hg
BP Temp. °C	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

BP Temp. °C	% by mole methanol
Vapor-liquid Equilibrium for Isopropanol/Methanol^[2] P = 101.325 kPa
BP Temp. °C	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

BP Temp. °C	% by mole acetone
Vapor-liquid Equilibrium for Isopropanol/Acetone^[2] P = 101.325 kPa
BP Temp. °C	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

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

References

^ Lange's Handbook of Chemistry, 10th ed. pp 1669-1674
^ ^a ^b ^c Binary Vapor-Liquid Equilibrium Data (Queriable database). Chemical Engineering Research Information Center. Retrieved on 5 May 2007.

Except where noted otherwise, data relate to standard ambient temperature and pressure.

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Category: Chemical data pages

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "Isopropyl_alcohol_(data_page)". A list of authors is available in Wikipedia.