Potassium permanganate, commonly known as gray manganese oxygen, is commonly used as a surgical tool and fruit disinfectant. When clothing is stained with potassium permanganate, vitamin C tablets can be dipped in water and applied to the stain and wiped gently, while dipping in water, and the stain will be removed in a while.
Hands stained with potassium permanganate stains, in addition to the use of this way to remove, you can also use citric acid or 2% oxalic acid solution soaked in water, through the chemical reaction, the stain can be removed. This method is applicable to all kinds of materials and colors of clothing stain removal.