What it is: Sulfur (sulphur) is a chemical element. It has a symbol S and an atomic number 16. It occurs naturally and is a bright yellow solid when at room temperature.
What it smells like: Sulfur odourless. It has no smell.
Tips: Don’t be confused. Most people think sulfur smells like rotten eggs or gas. The odor of rotten eggs actually comes from hydrogen sulfide (H2S) which is a by product of sulfur.