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1、pKa Data Compiled by R. Williamspage-1pKa ValuesINDEXInorganic2Phenazine24Phosphates3Pyridine25Carboxylic acids4, 8Pyrazine26Aliphatic4, 8Aromatic7, 8Quinoline27Phenols9Quinazoline27Alcohols and oxygen acids10, 11Quinoxaline27Amino Acids12Special Nitrogen Compounds28Peptides13Hydroxylamines28Nitroge
2、n Compounds14Hydrazines28Aliphatic amines15, 17, 19Semicarbazones28Cyanoamines16Amidoximes28Anilines17, 18, 20Thiols29Nucleosides21Carbon Acids30,31Special Table Heterocycles22Indicators31Acridine23References32-34Benzoquinoline24Cinnoline23Hydantoin24Imidazole24For complex chelating agents, see also
3、 reference 77.Note. This document was compiled by W.P. Jencks and has been added to by F.H. WestheimerpKa Data Compiled by R. Williamspage-2ACIDS CompoundpKRef.H3PO22.0, 2.23*28 H2PO47.21*77AgOH3.964HPO4_12.32*77Al(OH)311.228H3PO32.028As(OH)39.2228H2PO36.58*77H3AsO42.22, 7.0, 13.028H4P2O71.52*77H2As
4、O46.98*77H3 P2O72.36*77HAsO4*11.53*77 H2P2O7=6.60*77As2O304 HP2O7=9.25*77H3AsO39.22* H3BO39.23*28HReO4-1.2530 H2B4O74.0034HSCN4.0034 H2SeO32.6, 8.3, 2.62*28HB4O79.0034 HSeO38.3277Be(OH)23.74 H2SeO4Strong, 2.028HBr-9.0031 HOBr8.728HSeO42.0034 HOCl7.53, 7.4628, 33H3SiO310.034 HClO22.028H2SO31.9, 7.0,
5、1.76*28, 77 HClO3-1.0028H2SO4-3.0, 1.928 HClO4 (70%)-10.0031HSO37.21*77 CH3SO3H-0.631HSO41.99*77HCN9.4034H2S2O41.929H2CO36.37, 6.35*, 3.5834, 32H2Se3.89*77HCO310.33*HSe11.00*77H2CrO4-0.9830H2S7.00*77HCrO46.50*2, 30HS12.92*77HOCN3.9234HSbO211.034HZ3.17*, 0.59*77HTe5.0034H2GeO38.59, 12.7234, 78H2Te2.6
6、4, 11.034, 78Ge(OH)48.68, 12.728H2TeO32.7, 8.028HI-10.031Te(OH)66.2, 8.828HOI11.028 H2VO48.9530HIO30.828 HVO4=14.430H4IO66.0034 H2CrO40.7477H5IO61.64, 1.55, 8.2734, 28 HOCN3.7377HMnO4-2.2530 HSCN0.8577NH3OH*5.98* H3PO21.0777NH4*9.24*77 H3PO42.12*77HN34.72*77 H2S2O30.60*, 1.72*77HNO23.2928 H3AuO313.3
7、, 16.078HNO3-1.328 H3GaO310.32, 11.778N2H5+7.99*77H5IO63.29, 6.70, 15.078H2N2O27.0534(see above!)H2N2O211.034H4V6O171.9678H2OsO512.134H2NSO3H1.080H2O15.7none H3O+-1.7none* Indicates a thermodynamic value. Pb(OH)26.48 (10.92)4 (78)PHOSPHATES AND PHOSPHONATESCF3-1.16, 3.9357 CCl3-1.63, 4.8157 Phosphat
8、esNH3+CH2-2.35, 5.957 CompoundpKRef.(OOCCH2)2NH+CH2 -, 5.5757 Phosphate1.97, 6.82, 12.555CHCl2-1.14, 5.6157Glyceric acid 2-phosphate 3.6, 7.153CH2CI-1.40, 6.3057Enolpyruvic acid3.5, 6.453CH2Br-1.14, 6.5257Methyl-1.54, 6.3155 (OOCCH22NH+(CH2)2- -, 6.5457Ethyl-1.60, 6.6255 CH2I-1.30, 6.7257n-Propyl-1.
9、88,6.6755 NH3+CH2CH2-2.45, 7.0057n-Butyl-1.80, 6.8455 Dimethyl-1.2955C6H5CH=CH-2.00, 7.157 Di-n-propyl1.5955HOCH2-1.91, 7.1557 Di-n-butyl-1.7255C6H5NH2+(CH2)3-2.1, -57Glucose-3-0.84, 5.6756C6H5NH(CH2)3-, 7.1757Glucose-4-0.84, 5.6756Br(CH2)2-2.25, 7.357-glycero-1.40, 6.4454 CH3(CH2)5CH(COO)-, 7.557-g
10、lycero-1.37, 6.3454 C6H5CH2-2.3, 7.55573-phosphoglyceric acid 1.42, 3.4254 NH3+(CH2)4)-2.55, 7.55572-phosphoglyceric acid 1.42, 3.55, 7.1 peroxymonophosphoric acid 4.0569NH3+(CH2)5-2.6, 7.657diphosphoglyceric acid 7.40, 7.9954NH3+(CH2)10-, 8.0057glyceraldehyde-2.10, 6.7554OOC(CH2)10-, 8.2557dioxyace
11、tone-1.77,6.4554 (CH3)3SiCH2-3.22, 8.7057hexose di-1.52, 6.3154 fructose-6-0.97, 6.1154C6H5CH2-3.3, 8.457 glucose-6-0.94, 6.1154(C6H5)SC-3.85, 9.0057 glucose-1-1.10, 6.1354 adenylic acid3.8?, 6.2?54Arylphosphonic acids inosinic acid2.4?, 6.4?542X-RC6H3PO3H2 ADP2 strong, 6.654XR ATP3 strong, 6.654Cl4
12、-O2N1.12, 6.1457 pyrophosphoric acid0.9, 2.0, 6.6, 9.454Br5-O2N(a), 6.1457phosphopyruvic acid3.5, 6.3854Cl5-Cl(a), 6.6357creatine phosphate2.7, 4.554ClH1.63, 6.9857arginine phosphate2.8, 4.5, 9.6, 11.254BrH1.64, 7.0057arginine2.02, 9.0, 12.554Br5-CH31.81, 7.1557amino phosphate(-0.9), 2.8, 8.254Cl4-N
13、H2-, 7.3357trimetaphosphate2.0577CH3O4-O2N1.53, 6.9657 CH3OH2.16, 7.7757Phosphonates CH3O4-O2N-, 8.2257H2O3P(CH2)4PO3H2 1167-Naphtho-7.768 Propiono-9.4668 2-Methylaminopyridine 1-oxide 2.6167 2-Amino-1-methoxypyridinium perchlorate 12.467Oximes 4-Hydroxypyridine 1-oxide2.4567Benzophenone oxime11.318
14、 4-Methoxypyridine 1-oxide2.0567Diethyl ketoxime12.618 1-Methoxypyridi-4-one2.5767Isonitrosoacetylacetone (INAA) 7.476 2-Hydroxypyridine 1-oxide-0.8675-Methyl-1,2,3-cyclohexanetrione-1,3-dioxime 8.3762-Ethoxypyridine 1-oxide1.1867 1-Methoxypyrid-2-one-1.3Acetophenone oxime11.4818 4-Methylaminopyridi
15、ne 1-oxide 3.8567Acetoxime11.4218 4-Amino-1-methoxypyridinium perchlorate 1167Isonitrosoacetone (INA) 8.376 Salicyclaldoxime (SA)9.276 2-Aminopyridine 1-oxide 2.67671,2,3-Cyclohexanetrionetrioxime 8.076 2-Dimethylaminopyridine 1-oxide 2.27675-Methyl-1,2,3-cyclohexane-trionetrioxime 8.076 2-Methylami
16、no-1-methoxypyridinium toluene- p-sulphonate1167 4-Benzyloxypyridine 1-oxide1.9967Oxygen acids 1-Benzyloxypyrid-4-one2.5867sulfinic acids 2-Methoxypyridine 1-oxide1.2367p-Toluene-1.9973 1-Benzyloxypyrid-2-one-1.767p-Chlorobenzene-73 p-Nitrobenzene-73 Pyridine 1-oxidesp-Bromobenzene-1.8973 RpKRef.m-Nitrobenzene-1.8873 4-CH31.2947Benzene-1.84, 2.1673 3-CH31.0847 Peroxyacids3,4-(CH)41.0147 Peroxymonosulfuric9.4693-COOC4H90.0347 Acetic8.2704-NO2-1.747n-Butyric8.2
