Phenolphthalein is ████████ ███████ ██ █████ and ███████ is dissolved in alcohols ██ ████████████. It is █ ████ ████, which ███ lose █ ████ in solution. ███ ██████████ phenolphthalein molecule is ██████████ ███ ███ ██████ ████████████ ████████████████ ███ is ██████. Further addition ██ hydroxide in ██████ ██ occurs slowly and leads to █ █████████ ████, since the ██████████ ██████ is broken. ████████████████ in concentrated ████████ acid is ██████-███ due to ███████████ and creation of a stabilised ██████ cation.