Overview

Sulfur is a brittle, yellow nonmetal that forms multiple allotropes and a wide range of compounds.

Properties

It is insoluble in water, burns to produce sulfur dioxide and forms sulfides and sulfates with many elements.

Occurrence and Uses

Found near volcanic regions and in mineral deposits, sulfur is used in fertilizers, sulfuric acid production and rubber vulcanization.

Isotopes and Safety

Stable isotopes include S 32, S 33, S 34 and S 36; sulfur dioxide is an irritant and environmental pollutant requiring emission controls.