常见弱电解质电离平衡常数表.doc

如有侵权，请联系网站删除，仅供学习与交流常见弱电解质电离平衡常数表【精品文档】第 3 页弱电解质的解离常数(近似浓度O.O1O.OO3mol·L-1,温度298K)名称化学式解离常数，KpK醋酸HAc1.76×1O-54.75碳酸  H2CO3  K1=4.3O×lO76.37K2=5.61×1O111O.25草酸  H2C2O4  K1=5.9O×lO-21.23K2=6.4O×lO-54.19亚硝酸HNO2  4.6×1O4 (285.5K)3.37磷酸    H3PO4   K1=7.52×lO-32.12K2=6.23×1O87.21K3=2.2×lO13 (291K) 12.67亚硫酸  H2SO3   K1=1.54×lO-2 (291K) 1.81K2=1.O2×lO-76.91硫酸H2SO4K2=l.2O×lO21.92硫化氢  H2S  K1=9.l×lO8 (291K)  7.O4K2=l.l×1O-1211.96氢氰酸HCN4.93×1O1O9.31铬酸  H2CrO4  K1=1.8×lO-1O.74K2=3.2O×1O-76.49*硼酸H3BO35.8×1O-1O9.24氢氟酸HF3.53×1O-43.45过氧化氢H2O22.4×1O-1211.62次氯酸HClO2.95×1O5 (291K)4.53次溴酸HBrO2.O6×1O-98.69次碘酸HIO2.3×1O-111O.64碘酸HIO31.69×1O1O.77砷酸   H3AsO4    K1=5.62×lO-3  (291K) 2.25K2l.7O×lO76.77K3=3.95×1O1211.4O亚砷酸HAsO26×1O-1O9.22铵离子NH4+5.56×1O-1O9.25氨水NH3·H2O1.79×1O54.75联胺N2H48.91×1O76.O5羟氨NH2OH9.12×1O-98.O4氢氧化铅Pb(OH)29.6×1O43.O2氢氧化锂LiOH6.31×1O-1O.2氢氧化铍  Be(OH)21.78×1O65.75BeOH+2.51×1O98.6氢氧化铝A1(OH)35.O1×1O-98.3  Al(OH)2+1.99×1O-1O9.7氢氧化锌Zn(OH)27.94×1O-76.1氢氧化镉Cd(OH)25.O1×1O111O.3*乙二胺  H2NC2H4NH2  K1=8.5×lO54.O7K2=7.l×lO-87.15*六亚甲基四胺(CH2)6N41.35×1O-98.87*尿素CO(NH2)21.3×1O1413.89*质子化六亚甲基四胺(CH2)6N4H+7.1×1O-65.15甲酸HCOOH  1.77×1O-4 (293K)3.75氯乙酸ClCH2COOH1.4O×1O-32.85氨基乙酸NH2CH2COOH1.67×1O-1O9.78*邻苯二甲酸C6H4(COOH)2K1=1.12×1O-3 2.95 K2=3.91×1O-65.41柠檬酸    (HOOCCH2)2C(OH)COOH      K1=7.l×1O-4 3.14K2=1.68×1O-5 (293K)4.77K3=4.1×1O-76.39a-酒石酸  (CH(OH)COOH)2  K1=1.O4×1O-32.98K2=4.55×1O-54.34*8-羟基喹啉  C9H6NOH  K1=8×lO-65.1K2=1×1O-99.O苯酚C6H5OH  1.28×1O-1O (293K)9.89*对氨基苯磺酸  H2NC6H4SO3H  Kl=2.6×lO-lO.58K2=7.6×1O-43.12*乙二胺四乙酸(EDTA)  (CH2COOH)2NH+CH2CH2NH+(CH2COOH)2  K5=5.4×1O-76.27 K6=l.12×1O-111O.95