ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY ANDREW LAMBERT PHOTOGRAPHY / SCIENCE PHOTO LIBRARY
Iodine sublimation in a fume cupboard. At room temperature iodine is a purple/black solid. Gentle heating over a bunsen burner results in the formation of a purple gas. This solid-gas transition with no liquid phase is known as sublimation. Fume cupboards are used in laboratories to extract potentially harmful gases and smoke.
Model release not required. Property release not required.