常見弱電解質(zhì)電離平衡常數(shù)表.doc

精品文檔弱電解質(zhì)的解離常數(shù)(近似濃度O.O1O.OO3molL-1,溫度298K)名稱化學(xué)式解離常數(shù)，KpK醋酸HAc1.761O-54.75碳酸 H2CO3 K1=4.3OlO76.37K2=5.611O111O.25草酸 H2C2O4 K1=5.9OlO-21.23K2=6.4OlO-54.19亞硝酸HNO2 4.61O4 (285.5K)3.37磷酸 H3PO4 K1=7.52lO-32.12K2=6.231O87.21K3=2.2lO13 (291K) 12.67亞硫酸 H2SO3 K1=1.54lO-2 (291K)1.81K2=1.O2lO-76.91硫酸H2SO4K2=l.2OlO21.92硫化氫 H2S K1=9.llO8 (291K) 7.O4K2=l.l1O-1211.96氫氰酸HCN4.931O1O9.31鉻酸 H2CrO4 K1=1.8lO-1O.74K2=3.2O1O-76.49*硼酸H3BO35.81O-1O9.24氫氟酸HF3.531O-43.45過(guò)氧化氫H2O22.41O-1211.62次氯酸HClO2.951O5 (291K)4.53次溴酸HBrO2.O61O-98.69次碘酸HIO2.31O-111O.64碘酸HIO31.691O1O.77砷酸 H3AsO4 K1=5.62lO-3 (291K) 2.25K2l.7OlO76.77K3=3.951O1211.4O亞砷酸HAsO261O-1O9.22銨離子NH4+5.561O-1O9.25氨水NH3H2O1.791O54.75聯(lián)胺N2H48.911O76.O5羥氨NH2OH9.121O-98.O4氫氧化鉛Pb(OH)29.61O43.O2氫氧化鋰LiOH6.311O-1O.2氫氧化鈹 Be(OH)21.781O65.75BeOH+2.511O98.6氫氧化鋁A1(OH)35.O11O-98.3 Al(OH)2+1.991O-1O9.7氫氧化鋅Zn(OH)27.941O-76.1氫氧化鎘Cd(OH)25.O11O111O.3*乙二胺 H2NC2H4NH2 K1=8.5lO54.O7K2=7.llO-87.15*六亞甲基四胺(CH2)6N41.351O-98.87*尿素CO(NH2)21.31O1413.89*質(zhì)子化六亞甲基四胺(CH2)6N4H+7.11O-65.15甲酸HCOOH 1.771O-4 (293K)3.75氯乙酸ClCH2COOH1.4O1O-32.85氨基乙酸NH2CH2COOH1.671O-1O9.78*鄰苯二甲酸C6H4(COOH)2K1=1.121O-3 2.95 K2=3.911O-65.41檸檬酸 (HOOCCH2)2C(OH)COOH K1=7.l1O-4 3.14K2=1.681O-5 (293K)4.77K3=4.11O-76.39a-酒石酸 (CH(OH)COOH)2 K1=1.O41O-32.98K2=4.551O-54.34*8-羥基喹啉 C9H6NOH K1=8lO-65.1K2=11O-99.O苯酚C6H5OH 1.281O-1O (293K)9.89*對(duì)氨基苯磺酸 H2NC6H4SO3H Kl=2.6lO-lO.58K2=7.61O-43.12*乙二胺四乙酸(EDTA) (CH2COOH)2NH+CH2CH2NH+(CH2COOH)2 K5=5.41O-76.27