Molybdenum disulfide is an inorganic compound composed of molybdenum and sulfur. Its chemical formula is MoS2.
Molybdenum disulfide
Molybdenite
Electron microscopy of antisites (a, Mo substitutes for S) and vacancies (b, missing S atoms) in a monolayer of molybdenum disulfide. Scale bar: 1 nm.
A tube of commercial graphite powder lubricant with molybdenum disulfide additive (called "molybdenum")
Molybdenum is a chemical element; it has symbol Mo and atomic number 42. The name derived from Ancient Greek Μόλυβδος molybdos, meaning lead, since its ores were confused with lead ores. Molybdenum minerals have been known throughout history, but the element was discovered in 1778 by Carl Wilhelm Scheele. The metal was first isolated in 1781 by Peter Jacob Hjelm.
Molybdenum
Molybdenite on quartz
A plate of molybdenum copper alloy