First pKa values of some acid-base indicators.
D055598:Chemical Phenomena; D002621:Chemistry; D004396:Coloring Agents; D003408:Cresols; D006863:Hydrogen-Ion Concentration; D007202:Indicators and Reagents; D008722:Methods; D010636:Phenols
D004396:Coloring Agents; D003408:Cresols; D007202:Indicators and Reagents; D010636:Phenols