The loss of colour is ascribed. to the loss of the proton caused by the nucleophilic attack of water on the flavylium cation, resulting in the blue quinoidal (carbinol) form and ultimately. to the colourless chalcone as the pH continues to rise.
The loss of colour is ascribed.to the loss of the proton caused by the nucleophilic attack of water on the flavylium cation, resulting in the blue quinoidal (carbinol) form and ultimately. to the colourless chalcone as the pH continues to rise.