弱酸、弱碱的解离常数

无机酸在水溶液中的解离常数（25oC）序号(No.)名称(Name)化学式(Chemicalformula)KapKa1偏铝酸HAlO26.3×10-1312.202亚砷酸H3AsO36.0×10-109.223砷酸H3AsO46.3×10-3(K1)2.201.05×10-7(K2)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氢氰酸HCN6.2×10-109.217碳酸H2CO34.2×10-7(K1)6.385.6×10-11(K2)10.258次氯酸HClO3.2×10-87.509氢氟酸HF6.61×10-43.1810锗酸H2GeO31.7×10-9(K1)8.781.9×10-13(K2)12.7211高碘酸HIO42.8×10-21.5612亚硝酸HNO25.1×10-43.2913次磷酸H3PO25.9×10-21.2314亚磷酸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H4P2O73.0×10-2(K1)1.524.4×10-3(K2)2.362.5×10-7(K3)6.605.6×10-10(K4)9.2517氢硫酸H2S1.3×10-7(K1)6.887.1×10-15(K2)14.1518亚硫酸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H2S2O32.52×10-1(K1)0.601.9×10-2(K2)1.7221氢硒酸H2Se1.3×10-4(K1)3.891.0×10-11(K2)11.022亚硒酸H2SeO32.7×10-3(K1)2.572.5×10-7(K2)6.6023硒酸H2SeO41×103(K1)-3.01.2×10-2(K2)1.9224硅酸H2SiO31.7×10-10(K1)9.771.6×10-12(K2)11.8025亚碲酸H2TeO32.7×10-3(K1)2.571.8×10-8(K2)7.74无机碱在水溶液中的解离常数（25oC）序号(No.)名称(Name)化学式(Chemicalformula)KbpKb1氢氧化铝Al(OH)31.38×10-9(K3)8.862氢氧化银AgOH1.10×10-43.963氢氧化钙Ca(OH)23.72×10-32.433.98×10-21.404氨水NH3+H2O1.78×10-54.755肼（联氨）N2H4+H2O9.55×10-7(K1)6.021.26×10-15(K2)14.96羟氨NH2OH+H2O9.12×10-98.047氢氧化铅Pb(OH)29.55×10-4(K1)3.023.0×10-8(K2)7.528氢氧化锌Zn(OH)29.55×10-43.02有机碱在水溶液中的解离常数（25oC）序号(No.)名称(Name)化学式(Chemicalformula)KbpKb1甲胺CH3NH24.17×10-43.382尿素（脲）CO(NH2)21.5×10-1413.823乙胺CH3CH2NH24.27×10-43.374乙醇胺H2N(CH2)2OH3.16×10-54.505乙二胺H2N(CH2)2NH28.51×10-5(K1)4.077.08×10-8(K2)7.156二甲胺(CH3)2NH5.89×10-43.237三甲胺(CH3)3N6.31×10-54.208三乙胺(C2H5)3N5.25×10-43.289丙胺C3H7NH23.70×10-43.43210异丙胺i-C3H7NH24.37×10-43.36 111,3-丙二胺NH2(CH2)3NH22.95×10-4(K1)3.533.09×10-6(K2)5.51 121,2-丙二胺CH3CH(NH2)CH2NH25.25×10-5(K1)4.284.05×10-8(K2)7.39313三丙胺(CH3CH2CH2)3N4.57×10-43.3414三乙醇胺(HOCH2CH2)3N5.75×10-76.2415丁胺C4H9NH24.37×10-43.3616异丁胺C4H9NH22.57×10-43.5917叔丁胺C4H9NH24.84×10-43.31518己胺H(CH2)6NH24.37×10-43.3619辛胺H(CH2)8NH24.47×10-43.3520苯胺C6H5NH23.98×10-109.4021苄胺C7H9N2.24×10-54.6522环己胺C6H11NH24.37×10-43.3623吡啶C5H5N1.48×10-98.8324六亚甲基四胺(CH2)6N41.35×10-98.87252-氯酚C6H5ClO3.55×10-65.45263-氯酚C6H5ClO1.26×10-54.90274-氯酚C6H5ClO2.69×10-54.5728邻氨基苯酚(o)H2NC6H4OH5.2×10-54.281.9×10-54.7229间氨基苯酚(m)H2NC6H4OH7.4×10-54.136.8×10-54.1730对氨基苯酚(p)H2NC6H4OH2.0×10-43.703.2×10-65.5031邻甲苯胺(o)CH3C6H4NH22.82×10-109.5532间甲苯胺(m)CH3C6H4NH25.13×10-109.2933对甲苯胺(p)CH3C6H4NH21.20×10-98.92348-羟基喹啉(20℃)8-HO—C9H6N6.5×10-54.1935二苯胺(C6H5)2NH7.94×10-1413.136联苯胺H2NC6H4C6H4NH25.01×10-10(K1)9.304.27×10-11(K2)10.37有机酸在水溶液中的解离常数（25oC）序号(No.)名称(Name)化学式(Chemicalformula)KapKa1甲酸HCOOH1.8×10-43.752乙酸CH3COOH1.74×10-54.763乙醇酸CH2(OH)COOH1.48×10-43.834草酸(COOH)25.4×10-2(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)CH3CHOHCOOH1.4×10-43.8612丙二酸HOCOCH2COOH1.4×10-3(K1)2.852.2×10-6(K2)5.66132-丙炔酸HC≡CCOOH1.29×10-21.8914甘油酸HOCH2CHOHCOOH2.29×10-43.6415丙酮酸CH3COCOOH3.2×10-32.4916a-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异丁酸(CH3)2CHCOOH1.41×10-54.85203-丁烯酸CH2═CHCH2COOH2.1×10-54.6821异丁烯酸CH2═C(CH2)COOH2.2×10-54.6622反丁烯二酸(富马酸)HOCOCH═CHCOOH9.3×10-4(K1)3.033.6×10-5(K2)4.4423顺丁烯二酸(马来酸)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)3COOH 1.4×10-54.8626异戊酸(CH3)2CHCH2COOH1.67×10-54.78272-戊烯酸CH3CH2CH═CHCOOH2.0×10-54.70283-戊烯酸CH3CH═CHCH2COOH3.0×10-54.52294-戊烯酸CH2═CHCH2CH2COOH2.10×10-54.67730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)4.314.4×10-10(K3)9.35832正己酸CH3(CH2)4COOH1.39×10-54.8633异己酸(CH3)2CH(CH2)3—COOH1.43×10-54.8534(E)-2-己烯酸H(CH2)3CH═CHCOOH1.8×10-54.7435(E)-3-己烯酸CH3CH2CH═CHCH2COOH1.9×10-54.7236己二酸HOCOCH2CH2CH2CH2COOH3.8×10-5(K1)4.423.9×10-6(K2)5.4137柠檬酸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邻苯二酚(o)C6H4(OH)23.6×10-109.451.6×10-1312.840间苯二酚(m)C6H4(OH)23.6×10-10(K1)9.308.71×10-12(K2)11.0641对苯二酚(p)C6H4(OH)21.1×10-109.96422,4,6-三硝基苯酚2,4,6-(NO2)3C6H2OH 5.1×10-10.2943葡萄糖酸CH2OH(CHOH)4COOH1.4×10-43.8644苯甲酸C6H5COOH6.3×10-54.2045水杨酸C6H4(OH)COOH1.05×10-3(K1)2.984.17×10-13(K2)12.3846邻硝基苯甲酸(o)NO2C6H4COOH6.6×10-32.1847间硝基苯甲酸(m)NO2C6H4COOH3.5×10-43.4648对硝基苯甲酸(p)NO2C6H4COOH3.6×10-43.4449邻苯二甲酸(o)C6H4(COOH)21.1×10-3(K1)2.964.0×10-6(K2)5.4050间苯二甲酸(m)C6H4(COOH)22.4×10-4(K1)3.622.5×10-5(K2)4.6051对苯二甲酸(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(K6)7.4954癸二酸HOOC(CH2)8COOH2.6×10-5(K1)4.592.6×10-6(K2)5.5955乙二胺四乙酸(EDTA)CH2—N(CH2COOH)2∣CH2—N(CH2COOH)21.0×10-2(K1)2.02.14×10-3(K2)2.676.92×10-7(K3)6.165.5×10-11(K4)10.26