Potassium permanganate is a dangerous medicine

Grandmothers used to make us drunk with potassium permanganate in case of poisoning. As if it will kill the infection from the inside. But it must be remembered that potassium permanganate is a cluster of microcrystals. It is they, dissolving in water, that give it a pink color. The more crystals, the darker and richer the solution. The problem is that the crystals do not dissolve completely (until the end only when boiling). After complete dissolution, it is necessary to pass the solution of potassium permanganate through a good filter, for example, through several layers of gauze. Otherwise, falling on the mucous membrane of the stomach, a manganese crystal can cause a serious chemical burn.