S

Sulfur

IUPAC: Sulfur

S8 Elements CAS 7704-34-9
Quick Reference
Formula / NotationS8
CAS Number7704-34-9
Molecular Weight32.07
Melting Point113.0
Boiling Point444.6
Density2.07
SolubilityPractically insoluble in water
AppearanceBright yellow, brittle crystalline solid
Also Known AsS, sulphur, brimstone
CategoryElements

What is Sulfur?

Sulfur is a bright yellow non-metal, atomic number 16. Found in nature as elemental deposits and in sulfide/sulfate minerals. Odourless as element. Essential for life as component of amino acids cysteine and methionine.

Formula & Notation

S8

IUPAC Name: Sulfur

Other Names / Synonyms: S, sulphur, brimstone

Properties & Characteristics

Atomic number: 16. Atomic mass: 32.065 g/mol. Period 3, Group 16. Melting point (rhombic): 113 C. Boiling point: 444.6 C. Density: 2.07 g/cm3. Electronegativity: 2.58. Multiple allotropes (rhombic S8 most stable). Oxidation states: -2, +4, +6.

Physical Data

PropertyValue
Melting Point113.0
Boiling Point444.6
Density2.07
Molecular Weight32.07
SolubilityPractically insoluble in water
AppearanceBright yellow, brittle crystalline solid

Uses & Applications

Sulfuric acid (H2SO4) production - most used industrial chemical. Rubber vulcanisation. Fertiliser production. Agricultural fungicide. Pharmaceuticals (acne treatment). Gunpowder. Food preservative (SO2). Paper processing.

Safety Information

Sulfur itself: low acute toxicity, irritant. Burns to form SO2 (toxic, TLV 0.25 ppm). H2S gas produced with acids: highly toxic (IDLH 50 ppm, TLV 1 ppm). Sulfur dust: fire/explosion risk. Store away from oxidisers.

Always consult the SDS/MSDS before handling any chemical. This information is for educational purposes only.

Key Facts

Term Sulfur
Formula S8
CAS Number 7704-34-9
Molecular Weight 32.07
Category Elements
Synonyms S, sulphur, brimstone

Frequently Asked Questions

Sulfur is a bright yellow non-metal, atomic number 16. Found in nature as elemental deposits and in sulfide/sulfate minerals. Odourless as element. Essential for life as component of amino acids cysteine and methionine.

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