Sulfur Properties, Molecular Formula, Applications - WorldOfChemicals

Sulfur Properties




Sulfur is an abundant, multivalent non-metal. It is an essential element for all life, and is widely used in biochemical processes. In metabolic reactions, sulfur compounds serve as both fuels and respiratory materials for simple organisms. It is an important part of many enzymes and also in antioxidant molecules like glutathione and thioredoxin. Organically bonded sulfur is a component of all proteins, as the amino acids cysteine and methionine. Disulfide bonds are largely responsible for the mechanical strength and insolubility of the protein keratin, found in outer skin, hair, and feathers, and the element contributes to their pungent odor when burned. The element's commercial uses are primarily in fertilizers, because of the relatively high requirement of plants for it, and in the manufacture of sulfuric acid, a primary industrial chemical. Other well-known uses for the element are in matches, insecticides and fungicides.

Chemical Properties

Appearance Lemon Yellow Solid
Atomic Number 16
Atomic Weight 32.065 g/mol
Block p
Boiling Point 444.6 °C
CAS Number 7704-34-9
Class 4.1
Crystal Structure Orthorhombic
Density 2.07 g/cm3
EINECS Number 231-722-6
Electron Configuration 1s2 2s2 2p6 3s2 3p4
Group 16
IUPAC Name Sulfur
InChI 1/S
Ionization Energy 999.6 KJ/mol
Melting Point 115.21 °C
Molar Mass 32.06 g/mol
Molecular Formula S
Oxidation State 6,5,4,3,2,1,-1,-2
PG 3
Period 3
Symbol S