Phenolphthalein(aq)
Formation Gibbs Energy
Estimated ΔfG'm 285.4 ± 18.0 [kJ/mol]    Enter custom concentration »
Estimated ΔfG'° 302.5 ± 18.0 [kJ/mol]
Estimated using Component Contribution (2013)
pH
Ionic strength [M]
General Properties
Formula C20H14O4
Common names Phenolphthalein; 3,3-Bis(4-hydroxyphenyl)phthalide; C14286
Molar Mass 318.09 [Da]
Structure
Links KEGG »
Species Formation Energies
Phase Net charge #Hydrogens Δf [kJ/mol] ΔfG'° [kJ/mol] Reference
aqueous -2 12 -157.2 327.0 Component Contribution (2013)
aqueous -1 13 -212.8 313.7
aqueous 0 14 -265.1 302.6