求水等一些溶剂的介电常数.

water
H-OH
80
methanol
CH3-OH
33
ethanol
CH3CH2-OH
24.3
1-propanol
CH3CH2CH2-OH
20.1
1-butanol
CH3CH2CH2CH2-OH
17.8
formic acid
58
acetic acid
6.15
formamide
109
acetone
20.7
tetrahydrofuran (THF)
7.52
methyl ethyl ketone
18.5
ethyl acetate
6.02
acetonitrile
36.6
N,N-dimethylformamide (DMF)
38.3
diemthyl sulfoxide (DMSO)
47.2
hexane
CH3(CH2)4 CH3
2.02
benzene
2.28
diethyl ether
CH3CH2OCH2CH3
4.34
methylene chloride
CH2Cl2
9.08
carbon tetrachloride
CCl4
2.24
物质
t/℃
介电常数（ ）
偶极矩（D）
丙酮
25
20.70
2.88
苯
25
2.274
0
氯苯
20
5.621
1.69
氯仿
15
4.806
1.01
环己烷
20
2.016
0
四氯化碳
20
2.228
0
*上注脚表示温度（℃）,下同.