EnvThes
type: ConceptScheme

sulfur
type: Concept

deprecated concept
type: Concept

sulfur
in scheme: EnvThes
type: Concept
is replaced by: sulfur
alternative label: S
scope note: US LTER controlled vocabulary
definition: Sulfur or sulphur (British English; see spelling below) is a chemical element with symbol S and atomic number 16. It is an abundant, multivalent non-metal. Under normal conditions, sulfur atoms form cyclic octatomic molecules with chemical formula S8. Elemental sulfur is a bright yellow crystalline solid when at room temperature. Chemically, sulfur can react as either an oxidant or reducing agent. It oxidizes most metals and several nonmetals, including carbon, which leads to its negative charge in most organosulfur compounds, but it reduces several strong oxidants, such as oxygen and fluorine. Sulfur occurs naturally as the pure element (native sulfur) and as sulfide and sulfate minerals
broader: deprecated concept
deprecated: true