有机碱在水溶液中的解离常数(250C)
Dissociation Constants of Organic Bases in Aqueous Solution(25oC)
有机碱在水溶液中的解离常数(25oC)
Dissociation Constants of Organic Bases in Aqueous Solution (25oC)
序号(No.) |
名称(Name) |
化学式(Chemical
formula) |
Kb |
pKb
|
1 |
甲胺 |
CH3NH2
|
4.17×10-4 |
3.38
|
2 |
尿素(脲) |
CO(NH2)2
|
1.5×10-14 |
13.82
|
3 |
乙胺 |
CH3CH2NH2
|
4.27×10-4 |
3.37
|
4 |
乙醇胺
|
H2N(CH2)2OH
|
3.16×10-5 |
4.50 |
5 |
乙二胺
|
H2N(CH2)2NH2
|
8.51×10-5(K1) |
4.07 |
7.08×10-8(K2) |
7.15 |
|||
6 |
二甲胺 |
(CH3)2NH |
5.89×10-4 |
3.23 |
7 |
三甲胺
|
(CH3)3N
|
6.31×10-5 |
4.20 |
8 |
三乙胺 |
(C2H5)3N |
5.25×10-4 |
3.28 |
9 |
丙胺 |
C3H7NH2 |
3.70×10-4 |
3.432 |
10 |
异丙胺 |
i-C3H7NH2 |
4.37×10-4 |
3.36 |
11 |
1,3-丙二胺 |
NH2(CH2)3NH2 |
2.95×10-4(K1) |
3.53 |
3.09×10-6(K2) |
5.51 |
|||
12 |
1,2-丙二胺 |
CH3CH(NH2)CH2NH2 |
5.25×10-5(K1) |
4.28 |
4.05×10-8(K2) |
7.393 |
|||
13 |
三丙胺 |
(CH3CH2CH2)3N |
4.57×10-4 |
3.34 |
14 |
三乙醇胺 |
(HOCH2CH2)3N |
5.75×10-7 |
6.24 |
15 |
丁胺 |
C4H9NH2 |
4.37×10-4 |
3.36 |
16 |
异丁胺 |
C4H9NH2 |
2.57×10-4 |
3.59 |
17 |
叔丁胺 |
C4H9NH2 |
4.84×10-4 |
3.315 |
18 |
己胺 |
H(CH2)6NH2 |
4.37×10-4 |
3.36 |
19 |
辛胺 |
H(CH2)8NH2 |
4.47×10-4 |
3.35 |
20 |
苯胺 |
C6H5NH2
|
3.98×10-10 |
9.40
|
21 |
苄胺 |
C7H9N |
2.24×10-5 |
4.65 |
22 |
环己胺 |
C6H11NH2 |
4.37×10-4 |
3.36 |
23 |
吡啶 |
C5H5N
|
1.48×10-9 |
8.83 |
24 |
六亚甲基四胺 |
(CH2)6N4
|
1.35×10-9 |
8.87
|
25 |
2-氯酚 |
C6H5ClO |
3.55×10-6 |
5.45 |
26 |
3-氯酚 |
C6H5ClO |
1.26×10-5 |
4.90 |
27 |
4-氯酚 |
C6H5ClO |
2.69×10-5 |
4.57 |
28 |
邻氨基苯酚 |
(o)H2NC6H4OH |
5.2×10-5 |
4.28 |
1.9×10-5 |
4.72 |
|||
29 |
间氨基苯酚 |
(m)H2NC6H4OH |
7.4×10-5 |
4.13 |
6.8×10-5 |
4.17 |
|||
30 |
对氨基苯酚 |
(p)H2NC6H4OH |
2.0×10-4 |
3.70 |
3.2×10-6 |
5.50 |
|||
31 |
邻甲苯胺 |
(o)CH3C6H4NH2 |
2.82×10-10 |
9.55 |
32 |
间甲苯胺 |
(m)CH3C6H4NH2 |
5.13×10-10 |
9.29 |
33 |
对甲苯胺 |
(p)CH3C6H4NH2 |
1.20×10-9 |
8.92 |
34 |
8-羟基喹啉(20℃) |
8-HO—C9H6N |
6.5×10-5 |
4.19 |
35 |
二苯胺 |
(C6H5)2NH |
7.94×10-14 |
13.1 |
36 |
联苯胺 |
H2NC6H4C6H4NH2
|
5.01×10-10(K1) |
9.30 |
4.27×10-11
(K2) |
10.37 |