Sulfur is a bright yellow, crystalline solid at room temperature used in industrial synthesis.
Core Principles & Analysis
Known since antiquity as brimstone, sulfur was recognized as an element by Lavoisier in 1777.
The bright yellow solid naturally forms crown-shaped rings of eight atoms and burns with a blue flame to give pungent sulfur dioxide.
Most sulfur becomes sulfuric acid, the world's highest-tonnage industrial chemical, and it also vulcanizes rubber and protects vineyards as a fungicide.