The city of Fort Smith says there is no need to be alarmed if you see a slight pink or purple tint to your water.

FORT SMITH, Ark — Fort Smith says that water in the city is still safe to drink and use after a chemical overfeed may have changed its color. A release from the city said that residents had reported ...

Hydrogen peroxide decomposes on its own into water and oxygen gas. This process is sped up by a catalyst. In this reaction, the catalyst is potassium permanganate, and the bubbles are full of oxygen ...

Add 10 to 15 drops of glycerol to the depression in the center of a pile of finely ground potassium permanganate in an evaporating dish on a heat proof surface. Stand back! Within a few seconds, the ...

Convection in a liquid Convection in a liquid can be seen by putting a crystal of potassium permanganate in a beaker of water and gently heating it with a Bunsen flame. Air current close to a ...