ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Potassium burning in oxygen. Potassium (K) is a soft, alkali metal. When heated in an atmosphere of oxygen, it will burn with a brilliant flame to form potassium dioxide (or potassium superoxide, KO2). Potassium is the seventh most abundant metal in the Earth's crust, but is not found in its elemental form. As the superoxide it is used in breathing apparatuses.
Model release not required. Property release not required.