pKa's of representative acids and bases
Table
pKa's of representative acids and bases
pKa
Inorganic acids
boric acid 9.1 (20 °C)
hypochlorous acid 7.53 (18 °C)
hydrogen sulfide 7.0, 11.9 (18 °C)
carbonic acid 6.4, 10.3
phosphoric acid 2.1, 7.2, 12.8
sulfurous acid 1.8, 6.9 (18 °C)
nitric acid −1.6
sulfuric acid (−3), 1.9
hydrogen chloride (−7)
perchloric acid (−8)
Inorganic bases
ammonia 9.25
hydrazine −0.9, 8.23 (20 °C)
hydroxylamine 6.03 (20 °C)
Alcohols and phenols
methanol 15.5
trifluoroethanol 12.37
phenol 9.89
o-nitrophenol 7.17
m-nitrophenol 8.28
p-nitrophenol 7.15
o-chlorophenol 8.49
m-chlorophenol 8.85
p-chlorophenol 9.18
picric acid 0.38
Carboxylic acids
formic 3.75 (20 °C)
acetic 4.75
chloroacetic 2.85
dichloroacetic 1.48
trichloroacetic 0.70
oxalic 1.23, 4.19
malonic 2.83, 5.69
benzoic 4.19
Nitrogen bases
methylamine 10.66
dimethylamine 10.73
trimethylamine 9.81
piperidine 11.12
aniline 4.63
pyridine 5.25
quinoline 4.90 (20 °C)
pyrrole −0.27
See as table:
- Karl Philipp, Fürst von Wrede
- Karl Philipp Moritz
- Karl Philipp, Prince zu Schwarzenberg
- Karl Philipp Schwarzenberg, Prince zu
- Karl Philipp Wrede, Fürst von
- Karl Polanyi
- Karl P. Schmidt
- Karl Radek
- Karl Rahner
- Karl, Reichsfreiherr vom und zum Stein
- Karl Renner
- Karl Rokitansky, Freiherr von
- Karl Rove
- Karl Schmidt-Rottluff
- Karl Schulmeister
- Karl Schwarzschild
- Karl Schäfer
- Karl Schönherr
- Karl Seitz
- Karl Shapiro
- Karl Siegmund, Graf von Hohenwart
- Karl Siegmund Hohenwart, Graf von
- Karlskrona
- Karl S. Lashley
- Karlsruhe