Physical properties of solvents
Polarity
Solvent
index
3.4
Methylene
chloride
3.7
Ethylene
chloride
3.9
Butyl alcohol
3.9
Butanol
4.2
Tetrahydro-
furan
4.3
Ethyl acetate
4.3
1-propanol
4.3
2-propanol
4.4
Methyl acetate
4.5
Methyl ethyl
ketone
4.5
Cyclohexanone
4.5
Nitrobenzene
4.6
Benzonitrile
4.8
Dioxane
5.2
Ethanol
5.3
Pyridine
5.3
Nitroethane
5.4
Acetone
5.5
Benzyl alcohol
5.7
Methoxyethanol C.72
6.2
Acetonitrile
6.2
Acetic acid
6.4
Dimethylforma-
mide
D-4
Solvent Considerations
a
(Continued)
Boiling
Viscosity
Point °C
CP, 20 °C
(1 atm)
0.44
39.8
0.79
83.5
3.00
117.7
3.01
177.7
0.55
66.0
0.47
77.1
2.30
97.2
2.35
117.7
0.45
56.3
0.43
80.0
2.24
155.7
2.03
210.8
C.22
19C.1
C.54
10C.3
C.20
78.3
0.94
115.3
0.68
114.0
0.32
56.3
5.80
205.5
124.6
0.37
8C.6
C.26
117.9
0.90
153.0
Miscibility
Wavelength
Number
Cutoffs (nm)
(M)
20
245
20
—
—
—
15
—
17
220
19
260
15
210
15
—
15, 17
260
17
330
28
210
14, 20
—
15, 19
—
17
220
14
210
16
305
—
—
15, 17
330
13
—
13
—
11, 17
210
14
—
12
—