各種酸在水中的解離常數(shù)

1、.各種酸在水中的解離常數(shù)序號(hào) (No.)名稱(chēng) (Name) 化學(xué)式 (Chemical formula) Ka pKa1偏鋁酸HAlO26.3 10-1312.202亞砷酸H3AsO36.0 10-109.223砷 酸 H3AsO46.3 10-3 (K1)2.201.05 10-7(K 2)6.983.2 10-12 (K3)11.504硼 酸 H3BO35.8 10-10(K1)9.241.8 10-13 (K2)12.741.6 10-14 (K3)13.805次溴酸HBrO2.4 10-98.626氫氰酸HCN6.2 10-109.217碳 酸 H2CO34.2 10-7 (K1) 6

2、.385.6 10-11(K2)10.258次氯酸HClO3.2 10-87.509氫氟酸HF6.61 10-4 3.1810鍺 酸 H2GeO3 1.7 10-9 (K1)8.781.9 10-13 (K2)12.7211高碘酸HIO42.8 10-21.5612亞硝酸HNO25.1 10-43.2913次磷酸H3PO25.9 10-21.2314亞磷酸H3PO35.0 10-2 (K1)1.302.5 10-7 (K2)6.6015磷 酸 H3PO47.52 10-3 (K1)2.126.31 10-8 (K2)7.204.4 10-13 (K3)12.3616焦磷酸H4P2O7 3.0

3、10-2 (K1)1.524.4 10-3 (K2)2.362.5 10-7 (K3)6.605.6 10-10 (K4)9.2517氫硫酸H2S1.3 10-7 (K1) 6.887.1 10-15 (K2)14.1518亞硫酸H2SO31.23 10-2 (K1)1.916.6 10-8 (K2)7.1819硫 酸 H2SO41.0 103(K1)-3.01.02 10-2 (K2)1.9920硫代硫酸H2S2O3 2.52 10-1 (K1) 0.601.9 10-2 (K2)1.7221氫硒酸H2Se1.3 10-4 (K1) 3.891.0 10-11(K2)11.022亞硒酸H2S

4、eO3 2.7 10-3 (K1)2.572.5 10-7 (K2)6.6023硒 酸 H2SeO41103(K1) -3.01.2 10-2 (K2)1.92.24硅 酸 H2SiO3 1.7 10-10 (K1)9.771.6 10-12 (K2) 11.8025亞碲酸H2TeO3 2.7 10-3 (K1)2.571.8 10-8 (K2) 7.74序號(hào) (No.)名稱(chēng) (Name)化學(xué)式 (Chemical formula) Ka pKa1甲 酸 HCOOH 1.8 10-43.752乙 酸 CH3COOH 1.74 10-5 4.763乙醇酸CH2(OH)COOH1.48 10-43

5、.834草 酸 (COOH)2 5.4 10-2(K1) 1.275.4 10-5(K2) 4.275甘氨酸CH2(NH2)COOH1.7 10-109.786一氯乙酸CH2ClCOOH1.4 10-32.867二氯乙酸CHCl2COOH5.0 10-21.308三氯乙酸CCl3COOH2.0 10-10.709丙 酸 CH3CH2COOH1.35 10-54.8710丙烯酸CH2 CHCOOH5.5 10-54.2611 乳酸 (丙醇酸 ) CH3CHOHCOOH 1.4 10-4 3.8612 丙二酸 HOCOCH2COOH 1.4 10-3(K1) 2.85 2.2 10-6(K2) 5

6、.6613 2-丙炔酸 HC CCOOH 1.29 10-2 1.8914甘油酸HOCH2CHOHCOOH2.29 10-43.6415丙酮酸CH3COCOOH 3.2 10-32.4916a-丙胺酸CH3CHNH2COOH1.35 10-109.8717b-丙胺酸CH2NH2CH2COOH4.4 10-1110.3618正丁酸CH3(CH2)2COOH1.52 10-54.8219異丁酸(CH3)2CHCOOH1.41 10-54.85203-丁烯酸CH2 CHCH2COOH2.1 10-54.6821異丁烯酸CH2 C(CH2)COOH2.2 10-54.6622反丁烯二酸 (富馬酸 )H

7、OCOCH CHCOOH9.3 10-4(K1)3.033.6 10-5(K2)4.4423順丁烯二酸 (馬來(lái)酸 )HOCOCH CHCOOH1.2 10-2(K1)1.925.9 10-7(K2)6.2324酒石酸HOCOCH(OH)CH(OH)COOH1.04 10-3(K1)2.984.55 10-5(K2) 4.3425正戊酸CH3(CH2)3COOH1.4 10-54.8626異戊酸(CH3)2CHCH2COOH1.67 10-54.78272-戊烯酸CH3CH2C H CHCOOH2.0 10-54.70283-戊烯酸CH3CH CHCH2COOH3.0 10-54.52294-戊

8、烯酸CH2 CHCH2CH2COOH2.10 10-5 4.67730戊二酸HOCO(CH2)3COOH1.7 10-4(K1)3.778.3 10-7(K2)6.0831谷氨酸HOCOCH2CH2CH(NH2)COOH7.4 10-3(K1)2.134.9 10-5(K2)4.31.4.4 10-10 (K3) 9.35832正己酸CH3(CH2)4COOH1.39 10-5 4.8633異己酸(CH3)2CH(CH2)3 COOH1.43 10-54.8534(E)-2- 己烯酸H(CH2)3CH CHCOOH 1.8 10-5 4.7435(E)-3- 己烯酸CH3CH2CH CHCH2

9、COOH1.9 10-54.7236己二酸HOCOCH2CH2CH2CH2COOH3.8 10-5(K1)4.423.9 10-6(K2)5.4137檸檬酸HOCOCH2C(OH)(COOH)CH2COOH7.4 10-4(K1) 3.131.7 10-5(K2)4.764.0 10-7(K3)6.4038苯 酚 C6H5OH1.1 10-109.9639鄰苯二酚(o)C6H4(OH)23.6 10-109.451.6 10-13 12.840間苯二酚(m)C6H4(OH)23.6 10-10(K1)9.308.71 10-12(K2)11.0641對(duì)苯二酚(p)C6H4(OH)21.1 10

10、-109.96422,4,6- 三硝基苯酚2,4,6-(NO2)3C6H2OH5.110-1 0.2943葡萄糖酸CH2OH(CHOH)4COOH 1.4 10-43.8644苯甲酸C6H5COOH 6.3 10-54.2045水楊酸C6H4(OH)COOH1.05 10-3(K1)2.984.17 10-13(K2)12.3846鄰硝基苯甲酸(o)NO2C6H4COOH6.6 10-32.1847間硝基苯甲酸(m)NO2C6H4COOH3.5 10-43.4648對(duì)硝基苯甲酸(p)NO2C6H4COOH3.6 10-43.4449鄰苯二甲酸(o)C6H4(COOH)21.1 10-3(K1)

11、2.964.0 10-6(K2)5.4050間苯二甲酸(m)C6H4(COOH)22.4 10-4(K1)3.622.5 10-5(K2)4.6051對(duì)苯二甲酸(p)C6H4(COOH)22.9 10-4(K1)3.543.5 10-5(K2)4.46521,3,5- 苯三甲酸C6H3(COOH)37.6 10-3(K1)2.127.9 10-5(K2)4.106.6 10-6(K3)5.1853苯基六羧酸C6(COOH)62.1 10-1(K1)0.686.2 10-3(K2)2.213.0 10-4(K3)3.528.1 10-6(K4)5.094.8 10-7(K5)6.323.2 10-8(K