Further concentration leads to decomposition, with evolution of oxygen and formation of perchloric acid.
perchloric acid is best prepared by distilling potassium perchlorate with concentrated sulphuric acid.
The alkaloid gives a fine magenta colour with perchloric acid.
perchloric acid per·chlo·ric acid (pər-klôr'ĭk)
A clear colorless liquid that is the highest in oxygen content of the series of chlorine acids and is a powerful oxidant used as a catalyst.